Collection of 12 Perspex Teaching Blocks Lenses

Microscope cloth counting glass by J. Casartelli & Son of Manchester. Circa 1910. In original black leather case with satin and velvet lining. Marked: J. CASARTELLI & SON SALFORD.6...

A set of three Imperial standard Avoir weights by De Grave of London, for Lancashire County Council, dated 1906. 5, 10, & 20 lbs. Indenture number: 2757. Stamped with Royal Cipher...

A mid twentieth century Campbell–Stokes sunshine recorder, by Casella & Co, London. Pattern: Mk III C 45- 65 (latitudes 45° – 65°, North or South). 4 inch glass sphere. Serial number: 6962 Marked: CASELLA LONDON MADE IN ENGLAND 6962 For similar Casella sunshine recorders see the collections of: Science Museum, London. OBJECT NUMBER:1995-820. The National Museum of the Royal New Zealand Navy, Torpedo Bay, New Zealand. The Campbell–Stokes sphere is used to record sunshine. It was invented by John Francis Campbell in 1853 and modified in 1879 by Sir George Gabriel Stokes. The original design by Campbell consisted of a glass sphere set into a wooden bowl with the sun burning a trace on the bowl. Stokes’s refinement was to make the housing out of metal and to have a card holder set behind the sphere. C. F. Casella and Co: Established in 1810 as Tagliabue and Casella. Incorporated as a limited liability company, C. F. Casella and Co, in 1910. Circa 1930: C. F. Casella and Co Ltd., of Regent House, Britannia Walk, London, N1 7ND - Makers of anemometers, anemographs, barometers, barographs, hygrometers, hygrographs, radiation instruments, rain gauges...

A Campbell–Stokes sunshine recorder, attributed to Casella & Co, circa 1910.   Mounted on a later wooden display plinth. Marked with serial number...

Vintage crystal glassware set. The glasses have a beautiful leaf-shaped cut, the name of the model is Jersey. The glasses date from circa 1968. Beautiful quality crystal goblets in v...

19th Century French University Teaching Shapes - Collection. We know little of the history or use of this collection but they are from the late 19th Century and came from a French ...

A large collection of silverware by Tétard Frères French, Early 20th century Total weight: 29,400 grams Measures: Large trays: height 2cm, width 50cm, depth 40cm Small cups: height 5cm, diameter 5cm This extensive collection of very fine silverware...

Made of glass, metal Re-polished Fully functional Original condition.