Murano Blown Glass Bottle
to
67
205
121
271
173
73
53
33
27
26
21
19
10
8
7
5
5
2
2
2
1
1
1
1
1
33
25
15
14
11
Sort By
Murano Franco Moretti Silver Flecks Blue Pull Feather Italian Art Glass Decanter
By Franco Moretti
Located in Kissimmee, FL
Beautiful vintage Murano hand blown silver flecks, aqua blue swirl, and soft cream yellow Italian
Category
Mid-20th Century Italian Mid-Century Modern Bottles
Materials
Silver Leaf
Barbini Murano Blue Gold Flecks Bubbles Italian Art Glass 1950s Rocket Decanter
By Alfredo Barbini
Located in Kissimmee, FL
20 1/2" tall.
Literature:
Hand Blown Venetian Glass by Alfredo Barbini - Murano Italy Catalog
Category
Mid-20th Century Italian Mid-Century Modern Bottles
Materials
Gold Leaf
$1,280 Sale Price
20% Off
Dino Martens Murano Vintage Pink White Ribbons Ribbed Italian Art Glass Decanter
By Dino Martens, Aureliano Toso
Located in Kissimmee, FL
Beautiful and large, vintage Murano hand blown pink and white ribbons Italian art glass decanter
Category
Mid-20th Century Italian Mid-Century Modern Bottles
Materials
Glass, Art Glass, Blown Glass, Murano Glass
$1,280 Sale Price
20% Off
Murano Blue Ribbons Gold Flecks Italian Art Glass Powder Box Perfume Vanity Set
By Fratelli Toso, Aureliano Toso
Located in Kissimmee, FL
Beautiful vintage set of Murano hand blown blue ribbons and gold flecks Italian art glass vanity
Category
Mid-20th Century Italian Mid-Century Modern Bottles
Materials
Gold Leaf
$1,480 Sale Price / set
20% Off
Ermanno Toso Murano Satin Surface Blue Canes Pentoni Italian Art Glass Decanter
By Fratelli Toso, Ermanno Toso
Located in Kissimmee, FL
Beautiful and rare, vintage Murano hand blown blue satin surface and cut murrines Italian art glass
Category
Mid-20th Century Italian Mid-Century Modern Bottles
Materials
Art Glass, Blown Glass, Murano Glass, Murrine, Glass
$1,350 Sale Price
25% Off
Venetian Scent Bottles, Late 19th Century Attributed to Artistica Barovier
By Vetreria Artistica Barovier
C.
Located in London, GB
Four Chatelaine Venetian Scent Bottles circa 1870-1890 blown glass made by the late 19th Century
Category
Antique 1870s Italian Victorian Bottles
Materials
Brass
Murano "Albarelli" Italian Pair of Bottles with Lid Blue Blown Glass
Located in Prato, Tuscany
pair of blue blown glass bottles with lid; the two bottles were made in a magical, fascinating, and
Category
Mid-20th Century Italian Medieval Glass
Materials
Glass
Fulvio Bianconi for Venini Fasce Orizzontale Bottle w/ Stopper
By Fulvio Bianconi
Paolo Venini
Located in North Miami, FL
Extremely rare large blue striped hand blown Murano glass bottle and stopper. Decorated with two
Category
Vintage 1950s Italian Mid-Century Modern Bottles
Materials
Murano Glass
Murano Vintage Ribbon Design Art Glass Scent Bottle
Located in Bishop
s Stortford, Hertfordshire
A very stylish vintage Italian Murano hand blown art glass scent bottle and stopper in pink and
Category
20th Century Italian Modern Glass
Materials
Blown Glass
Rare Uranium Murano Orange Sommerso Lighter
Cigarette Holder
Located in Palm Springs, CA
Very rare Murano Sommerso orange and yellow highlights uranium lidded lighter and cigarette holder
Category
Vintage 1960s Italian Bottles
Materials
Blown Glass
Large Italian Murano Art Glass Clown Decanter Bottle 1960s
Located in Moreno Valley, CA
Vintage Large Hand Blown Italian Murano Glass Clown Decanter Bottle 18.5” .
Amazing colorful hand
Category
Late 20th Century Italian Post-Modern Barware
Materials
Art Glass, Blown Glass, Murano Glass
Archimede Seguso Murano Green Sommerso Glass Bottle with Stopper
By Seguso Vetri d
Arte, Archimede Seguso
Located in New Windsor, NY
, seafoam green glass perfume bottle and tear drop stopper encased in clear. Ribbed exterior. Signed twice
Category
Late 20th Century Italian Mid-Century Modern Glass
Materials
Art Glass, Blown Glass
Studio Glass Vase Based on a Mouth-Blown Bottle Shape of Tortoiseshell
Located in Verviers, BE
Studio glass vase based on a mouth-blown bottle shape of tortoise-shell splatter pattern (in red
Category
Vintage 1950s Italian Mid-Century Modern Glass
Materials
Murano Glass
Set of 4 Murano stemmed glass, pitcher and bottle. Fuin attribution. Gold Leaf.
Located in Tavarnelle val di Pesa, Florence
bottle with stopper and one pitcher.
They are a showroom sample group. Exquisit manufacturing. The glass
Category
Late 20th Century Italian Mid-Century Modern Glass
Materials
Art Glass, Blown Glass, Murano Glass
$2,892 Sale Price / set
25% Off
Murano Glass Bottle Signed by Carlo Moretti from the 1970s
By Carlo Moretti
Located in Milano, MI
Hand blown Murano glass bottle by Carlo Moretti, 1970s
Measures: Ø cm 12, H cm 25
Carlo
Category
Vintage 1970s Italian Mid-Century Modern Glass
Materials
Murano Glass
$386 Sale Price
30% Off
Empoli Sky Blue White Italian Art Glass Large Dimpled Decanter Original Stopper
By Empoli
Located in Kissimmee, FL
Beautiful vintage sky blue over white Italian art glass decanter with original stopper. Documented
Category
Mid-20th Century Italian Mid-Century Modern Bottles
Materials
Art Glass, Blown Glass, Murano Glass, Glass
$1,312 Sale Price
25% Off
Gio Ponti for Venini Morandiane Murano Glass Bottle with Stopper, Signed
By Gio Ponti, Paolo Venini
Located in Chicago, IL
. Murano glass is world renowned. Gio Ponti had a long fruitful relationship with Paolo Venini, starting in
Category
Vintage 1980s Italian Mid-Century Modern Glass
Materials
Glass, Blown Glass
Le Fenice Murano Italian Silver Mounted Green Glass Cologne Bottle
By Archimede Seguso
Located in Bishop
s Stortford, Hertfordshire
A stylish vintage La Fenice, Murano green glass cologne bottle with silver mounted top and screw
Category
20th Century European Mid-Century Modern Glass
Materials
Silver
Vintage Murano Turquoise Glass Vessel Bottle, Gold Droplets by Barovier e Toso
By Barovier&Toso
Located in North Miami, FL
This gorgeous vintage Murano glass bottle, vessel or object is the most spectacular turquoise color
Category
Vintage 1960s Italian Mid-Century Modern Glass
Materials
Blown Glass
1980s VeArt Murano Glass Hand-blown Striped Turquoise Bottle
By VeArt
Located in Florence, Tuscany
A beautiful hand-blown decorative bottle-shaped vase made in 1983 in Venice. Signed and dated on
Category
Vintage 1980s Italian Vases
Materials
Art Glass, Glass, Blown Glass
5 Italian Burnt Orange Color Scavo Glass Wheat Vases Bottles Mid-Century Modern
By Murano Glass Sommerso
Located in Miami, FL
Set of 5 Dark Amber Scavo Glass Murano Art Glass Bud Vases, Bottles, Vessel, Decanter Mid-Century
Category
Vintage 1980s Italian Mid-Century Modern Vases
Materials
Blown Glass, Murano Glass
Italian Art Glass Empoli Decanter Ewer Cruet Vase Bottle w Stopper Ruby Red
By Empoli
Located in Palm Beach, FL
A monumental Italian art glass decanter, ewer, cruet, vase or bottle with stopper in a rich ruby
Category
Mid-20th Century Italian Mid-Century Modern Pitchers
Materials
Glass, Art Glass, Blown Glass, Murano Glass
$675 Sale Price
25% Off
Off White Beige Bottle Shape Murano Glass Table Lamp MINT!
By Vintage Murano Gallery
Located in Rockaway, NJ
Off White Beige Bottle Shape Murano Glass Table Lamp MINT!
Category
20th Century Italian Mid-Century Modern Table Lamps
Materials
Brass
Fulvio Bianconi Venini A Fasce Orizzontali bottle vase with stopper model 4581
By Venini, Fulvio Bianconi
Located in Palm Beach, FL
4581. Handmade of the venetian island of murano out of the finest italian art glass. Featuring light
Category
Late 20th Century Italian Mid-Century Modern Glass
Materials
Glass, Art Glass, Blown Glass, Murano Glass
$1,875 Sale Price
25% Off
Murano Italian Hand Blown Twin Handled Bottle Shaped Millefiori Art Glass Vase
Located in Bishop
s Stortford, Hertfordshire
A very fine Art Deco Italian Murano satin glass millefiori twin handled vase dating from circa 1930
Category
Vintage 1930s Italian Art Deco Vases
Materials
Blown Glass
A Pair of Italian Murano Hand-blown Bottle-form Art Glass Lamps
Located in San Francisco, CA
each of elliptical form lamp with long flaring neck above a bulbous body all resting on a giltwood base
Category
Vintage 1960s Italian Mid-Century Modern Table Lamps
Materials
Blown Glass
Alberto Donà Gray Engraved Murano Glass Bottles Molato, 1980s
By Alberto Donà
Located in Murano, Venezia
Three bottles engraved entirely by hand with Murano grey blown glass.
To perform this work we need
Category
Vintage 1980s Italian Mid-Century Modern Jars
Materials
Art Glass, Blown Glass, Murano Glass
Set of 3 Hand Blown Murano Voda Vases / Bottles in Frosted Brass
Located in West Hollywood, CA
Introducing the Voda Bottle collection, an extraordinary trio of artisanal masterpieces designed to
Category
21st Century and Contemporary Italian Modern Vases
Materials
Murano Glass
Set of 3 Hand Blown Murano Voda Vases / Bottles in Frosted Silver
Located in West Hollywood, CA
Introducing the Voda Bottle collection, an extraordinary trio of artisanal masterpieces designed to
Category
21st Century and Contemporary Italian Modern Vases
Materials
Silver Leaf
Large Decorative Murano Glass Vase or Bottle by V. Nason, Italy, 1970s
By Vincenzo Nason
Cie
Located in Roma, IT
Wonderful decorative large bottle in mouth-blown Murano glass. This stunning and unique piece was
Category
Mid-20th Century Italian Mid-Century Modern Vases
Materials
Glass, Art Glass, Blown Glass, Murano Glass
Murano White Copper Flecks Ribbons Italian Art Glass Genie Bottle Flower Vase
By Aureliano Toso, Dino Martens, Fratelli Toso
Located in Kissimmee, FL
Beautiful large vintage Murano hand blown copper aventurine and white ribbons Italian art glass
Category
Mid-20th Century Italian Mid-Century Modern Vases
Materials
Glass, Art Glass, Blown Glass, Murano Glass, Ribbon
Dino Martens Murano Blue Green White Italian Art Glass Decanter Bottle Vase
By Venini, Aureliano Toso, Dino Martens
Located in Kissimmee, FL
Beautiful vintage murano hand blown blue-green and white "filigrana" ribbons Italian art glass
Category
Vintage 1950s Italian Mid-Century Modern Vases
Materials
Glass, Art Glass, Blown Glass, Murano Glass
$760 Sale Price
20% Off
Fratelli Toso Murano Orange Gold Flecks Italian Art Glass Bottle Flower Vase
By Fratelli Toso
Located in Kissimmee, FL
Beautiful vintage Murano hand blown persimmon orange and gold flecks Italian art glass squared
Category
Mid-20th Century Italian Mid-Century Modern Vases
Materials
Gold Leaf
$880 Sale Price
20% Off
1980 VeArt White Filigrana Italian Design Murano Glass Set of Bottles
By VeArt
Located in Brescia, IT
Set of 2 Bottles
VeArt
Italy, 1982
White Filigrana Glass
VeArt Sticker Label
Veart Sign Engraved
Category
Vintage 1980s Italian Post-Modern Vases
Materials
Blown Glass
Murano Glass Bianco
Murrine Bottle Vase by Ermanno Toso for Fratelli Toso
By Ermanno Toso, Fratelli Toso
Located in Philadelphia, PA
A rare Ermanno Toso white bottle form Venetian glass vase with murrine throughout.
Of similar
Category
Mid-20th Century Italian Mid-Century Modern Vases
Materials
Blown Glass
Murano CANNE a FACE Bottle / Decanter Attributed to Fulvio Bianconi
By Fulvio Bianconi
Located in Lake Worth Beach, FL
search for one like it."
Note: Please see our extensive collection of Murano glass including several
Category
Late 20th Century Italian Mid-Century Modern Vases
Materials
Blown Glass
$875 Sale Price
30% Off
Pair of Mid-Century Modern Tall Bottle Shaped Murano Table Lamps
By Gino Vistosi
Located in Port Jervis, NY
Fabulous pair of Mid-Century Modern Sculptural Blown glass table from Murano Italy. Purple grey in
Category
Vintage 1950s Italian Mid-Century Modern Table Lamps
Materials
Brass
Venetian Art Glass Vase Bottle Gold Pulled Feather Fenicio Aventurine Blue Deco
Located in Palm Beach, FL
Rare and unique Venetian art glass vase or bottle with a beautiful pulled feather fenicio design
Category
Early 20th Century Italian Art Nouveau Vases
Materials
Gold, Gold Leaf
Zwiesel Rare Vintage Mid-Century Modern Purple Smoked Bubble Glass Bottle Vase
By Glasfachschule Zwiesel, Max Gangkofner, Fulvio Bianconi, Venini
Located in Landau an der Isar, Bayern
Modern style German glass - just as good as any piece of Venetian Murano glass producer of that time
Category
Late 20th Century German Mid-Century Modern Vases
Materials
Blown Glass, Murano Glass
Kount Red-Blue Light Blue Large Vase with Lid by Karim Rashid
By Purho Murano, Karim Rashid
Located in Milan, IT
mouth-blown Murano glass, this bottle with the lid's handle in red will make a sophisticated statement
Category
2010s Italian Vases
Materials
Murano Glass
Atelier Oball Mid-Century Modern Two of Murano Glass Bottles Sommerso, 1994s
By Atelier Oball
Located in Murano, Venezia
Pair of Murano blown glass bottles, handmade with Sommersa work, amethyst, blue, pink and crystal
Category
1990s Italian Mid-Century Modern Jars
Materials
Art Glass, Blown Glass, Murano Glass
Murano Glass bottle
By Murano 5
Located in Warszawa, PL
Murano vase bottle Murano Glass
without damage
Category
Vintage 1970s Italian Mid-Century Modern Bottles
Materials
Glass, Art Glass, Blown Glass, Murano Glass
Murano Glass bottle
By Murano 5
Located in Warszawa, PL
Murano bottle signed Murano Glass
without damage
Category
Vintage 1970s Italian Mid-Century Modern Bottles
Materials
Glass, Art Glass, Blown Glass, Murano Glass
Yali Murano Hand Blown Filigrana Atomiser Perfume Bottle White
By YALI GLASS
Located in Venezia, IT
Skilfully hand blown using the Filigrana technique, this elegant atomiser can be used as for
Category
2010s Italian Bottles
Materials
Blown Glass
1295 Murano Hand Made Art Glass "Napoleone a Venezia" Bottle Vase Ltd
Located in Venice, VE
Our aim is the emotion , through glass , lighten by the spirit of art.
1295 MURANO is a furnace
Category
2010s Italian Renaissance Revival Bottles
Materials
Art Glass, Blown Glass, Murano Glass
Murano Carafe Green by La DoubleJ, Murano Glass, Made in Italy
By La DoubleJ
Located in Milano, Lombardia
conversation piece of any minimalist or maximalist dinner party. Crafted from hand-blown Murano glass by the
Category
2010s Bottles
Materials
Blown Glass, Murano Glass
ARCHIMEDE SEGUSO Bottle in Artistic Blown Glass of Murano, circa 1950
By Archimede Seguso
Located in Rio de Janeiro, RJ
Archimede Seguso, bottle in artistic blown glass of Murano, circa 1950.
Category
Vintage 1950s Italian Mid-Century Modern Glass
Materials
Murano Glass
1295 Murano Hand Made Art Glass Amber Vase 24K Gold Leaf
Located in Venice, VE
Our aim is the emotion , through glass , lighten by the spirit of art.
1295 MURANO is a furnace
Category
2010s Italian Renaissance Revival Bottles
Materials
Art Glass, Blown Glass, Murano Glass
1295 Murano Hand Made Art Glass Amber Vase 24k Gold Leaf
Located in Venice, VE
Our aim is the emotion, through glass, lighten by the spirit of art.
1295 Murano is a furnace, a
Category
2010s Italian Renaissance Revival Bottles
Materials
Art Glass, Blown Glass, Murano Glass
1295 Murano Hand Made Art Glass Vase, Amber Cornucopia 24k Gold Leaf
Located in Venice, VE
Our aim is the emotion, through glass, lighten by the spirit of art.
1295 Murano is a furnace, a
Category
2010s Italian Renaissance Revival Bottles
Materials
Art Glass, Blown Glass, Murano Glass
1295 Murano Hand Made Art Glass Cromo Amber, Set of 3 Masterpieces
Located in Venice, VE
Our aim is the emotion, through glass, lighten by the spirit of art.
1295 Murano is a furnace, a
Category
2010s Italian Renaissance Revival Bottles
Materials
Art Glass, Blown Glass, Murano Glass
1295 Murano Hand Made Art Glass Cromo Amber, Set of 3 Masterpieces
Located in Venice, VE
Our aim is the emotion, through glass, lighten by the spirit of art.
1295 Murano is a furnace, a
Category
2010s Italian Renaissance Revival Bottles
Materials
Art Glass, Blown Glass, Murano Glass
1295 Murano Hand Made Art Glass Cromo Amber, Set of 3 Masterpieces
Located in Venice, VE
Our aim is the emotion, through glass, lighten by the spirit of art.
1295 Murano is a furnace, a
Category
2010s Italian Renaissance Revival Bottles
Materials
Art Glass, Blown Glass, Murano Glass
Set of Three White Opaline Bohemian Glass Goblet Shaped Lidded Bottles Jars
Located in Queens Village, NY
complement any design scheme.
These bottles and jars made from opaline glass are not only attractive but also
Category
Antique Late 19th Century French Late Victorian Bottles
Materials
Crystal, Gold, Gold Plate, Gold Leaf
1295 Murano Hand Made Art Glass Cromo Amber, Set of 3 Masterpieces
Located in Venice, VE
Our aim is the emotion, through glass, lighten by the spirit of art.
1295 Murano is a furnace, a
Category
2010s Italian Renaissance Revival Bottles
Materials
Art Glass, Blown Glass, Murano Glass
1295 Murano Hand Made Art Glass Amber Cup 24k Gold Leaf Cornucopia
Located in Venice, VE
Our aim is the emotion, through glass, lighten by the spirit of art.
1295 MURANO is a furnace, a
Category
2010s Italian Renaissance Revival Bottles
Materials
Art Glass, Blown Glass, Murano Glass
Murano Handmade Glass Balloton Decanter Bottle
Located in Venice, VE
Bottiglia Decanter artistica in vetro Rosso Rubino di Murano, soffiato a mano con grande maestria
Category
2010s Italian Glass
Materials
Art Glass, Blown Glass, Murano Glass
- 1
Get Updated with New Arrivals
Save "Murano Blown Glass Bottle", and we’ll notify you when there are new listings in this category.
Murano Blown Glass Bottle For Sale on 1stDibs
Find many varieties of an authentic murano blown glass bottle available at 1stDibs. Each murano blown glass bottle for sale was constructed with extraordinary care, often using glass, blown glass and murano glass. There are 158 variations of the antique or vintage murano blown glass bottle you’re looking for, while we also have 26 modern editions of this piece to choose from as well. You’ve searched high and low for the perfect murano blown glass bottle — we have versions that date back to the 19th Century alongside those produced as recently as the 21st Century are available. A murano blown glass bottle, designed in the Mid-Century Modern, Modern or Art Deco style, is generally a popular piece of furniture. You’ll likely find more than one murano blown glass bottle that is appealing in its simplicity, but Fratelli Toso, Archimede Seguso and Venini produced versions that are worth a look.
How Much is a Murano Blown Glass Bottle?
A murano blown glass bottle can differ in price owing to various characteristics — the average selling price 1stDibs is $1,145, while the lowest priced sells for $198 and the highest can go for as much as $116,387.
Finding the Right Vases-vessels for You
For thousands of years, vases and vessels have had meaningful functional value in civilizations all over the world. In Ancient Greece, ceramic vessels were used for transporting water and dry goods, holding bouquets of flowers, for storage and more. Outside of utilitarian use, in cities such as Athens, vases were a medium for artistic expression — pottery was a canvas for artists to illustrate their cultures’ unique people, beliefs and more. And pottery skills were handed down from fathers to sons.
Every antique and vintage vase and vessel, from decorative Italian urns to French 19th-century Louis XVI–style lidded vases, carries with it a rich, layered story.
On 1stDibs, there is a vast array of vases and vessels in a variety of colors, sizes and shapes. Our collection features vessels made from delicate materials such as ceramic and glass as well as durable materials like rustproof metals and stone.
A contemporary vase can help introduce an air of elegance to your minimalist space while an antique Chinese jar would make a luxurious addition to an Asian-inspired interior. Alternatively, if you’re looking for a statement piece, consider an Art Deco vase crafted by Italian architect and furniture designer Gio Ponti.
Vases and vessels — be they handmade pots, handblown glass wine bottles or otherwise — are versatile, practical decorative objects, and no matter your particular design preferences, furniture style or color scheme, they can add beauty and warmth to any home. Find yours on 1stDibs today.
Questions About Murano Blown Glass Bottle
- Is Murano blown glass?1 Answer1stDibs ExpertMay 5, 2023Yes, Murano is blown glass. Artisans on Murano, an island in Venice, Italy, produce the colorful glassware through a unique process. Murano glass is identifiable by its richly layered colors and characteristic gold or silver flecks inside the glass. Authentic Murano glass often has small imperfections and an irregular shape due to the freeform creation process. One of the earliest Venetian glass furnaces is believed to have been established as far back as the 8th century (the filigrana technique is as old as the 16th century). On 1stDibs, shop a collection of Murano glassware from some of the world’s top sellers.
- 1stDibs ExpertApril 5, 2022All Murano glass pieces are either hand-blown or mouth-blown in Murano, Italy. This will cause small imperfections like air bubbles or a Pontil mark. In addition, the glass master will leave his signature on the piece indicating its authenticity. It’s important to purchase from a vetted seller or vendor to ensure authenticity. Shop authentic Murano glass pieces from 1stDibs.
Read More
How a Craving for Color Revolutionized Glass
After synthetic dyes changed fashion, home goods and printed matter, it was only a matter of time till glass caught up.
Kazuyo Sejima’s Flowering Tree Blooms Year-Round
The brilliantly simple design turns a modest bouquet into a major statement.
He Wrote ‘Oedipus Rex,’ but Do You Know What He Looked Like?
The Greek tragedian is said to have been handsome in his day.
Cigar Culture Was Once the Peak of Masculinity. Now, It’s a Compelling Curiosity
Even for those who don’t indulge, elegant smoking accessories and audacious art portraying cigar enthusiasts hold a nostalgic allure.
African Travel Plans on Hold? This Ardmore Leopard Vase Brings the Beauty of the Savanna to You
It’s an excellent example of the sought-after ceramics coming out of South Africa’s KwaZulu-Natal province.
With a High-Tech Flagship and Cool Collabs, Lladró Is Breaking the Mold for Porcelain Production
Thanks to its new leadership, the Spanish maker of figurines, busts and lighting is on a mission to update the art of porcelain for the 21st century.
Zoë Powell’s Magnolia 05 Vessel Is Handmade from Clay She Unearthed Herself
The free-form stoneware piece is inspired by the magnolia tree and its associations with home.
8 Ways to Breathe New Life into a Space with Plants
The pair behind the Instagram account @houseplantclub share their tips for making any room of the house gloriously green.
More Ways To Browse
Pink Ribbed Glass Vase
Salviati Decanters
Teal Glass Bottle
Vintage Bottle Rockets
Archimede Seguso Perfume
Clown Decanter
Empoli Blue Glass Decanter
Murano Clown Decanter
Murano Cruet
Murano Glass Clown Decanter
Rocket Decanter
Toso Nerox
Vintage Clown Decanter
Vintage Genie Bottles Italian
Archimede Seguso Perfume Bottle
Bohemian Cut Glass Jar
Murano Ewer
Murano Glass Ewer