Trippensee Planetarium Company Desk Tpo Tellurian

French Planetary Clock In Golden Brass And Tellurium Marble, Planetarium Rare French planetary from the 19th century in brass and Royal Red marble base...

This rare paradoxical planetarium demonstrates the rotation and revolution motion of the system of the planet Jupiter and the Medici satellites. The base is made of ebonized fruit wo...

Antique The Vetter Co. Ideal Planetarium Model 1930s in original case. Item features an original metal case, brass and metal construction, original label, very nice antique item...

Mechanical planetarium, or representative model of the solar system, from the second half of the 19th century. The cartouche of the globe reads: GlobusVydal J. Felkl at Syn Roztok ...

A set of graduated calipers from the Ross of London optical company, mounted on a later wall hanging backboard. Each caliper with various markings. Ross of London was a maker o...

Rings beautifully, and moves smoothly. Gifted from the Governor of Pennsylvania, David Lawerence to the Chancellor of the University of Pittsburgh...

This is the luxury edition of Asprey and Company Limited Mail Order Catalogue from around 1930, with an imitation crocodile skin cover and velum spi...

This is a wonderful piece of suburban folk art and mid-century Americana. It is a vintage 'bench made' table lamp incorporating an actual working electric company meter. When the l...

A Graphophone model Q with a black horn adorned with a gold line. It stands over a black iron base decorated with grapevine decal & gold accents. Manufacturer’s name and addresses are impressed in the front of the base. Patents dates are incised in the right lateral metal support leg. There is a black cylinder phonograph...

An exceptional example of mid-20th-century naval navigation technology, this U.S. Navy Bureau of Ships Self-Synchronizing Alidade Pelorus Stand was manufactured by the renowned Sperry Gyroscope Company, Brooklyn, New York, a key supplier of precision instruments for the U.S. military. This instrument, Mark XXXI, Mod 0, Serial No. 320420, was built under Navy contract NXss 17019 and bears its original inspection tags, confirming it passed rigorous Navy testing before deployment. The pelorus stand is crafted in a striking combination of polished aluminum and solid brass, featuring a protective domed brass cover that reveals a beautifully preserved gyrocompass repeater dial. Designed to interface with a ship’s gyrocompass, the self-synchronizing mechanism allowed navigators to take precise bearings on landmarks, celestial objects, or other ships—critical for accurate positioning before the advent of modern satellite navigation. This piece reflects the height of WWII and early Cold War-era maritime engineering, used aboard larger Navy vessels to aid in navigation and fire control plotting. Sperry Gyroscope was synonymous with precision during this era, and their equipment remains iconic among naval historians and collectors. The instrument retains: • Original builder’s plate...