Replica of glass object in Royal Institution collection: Dewar double annular jacketed vessel completed by Scientific Supplies Co. Ltd. and Museum Workshops, London, England, 1932. Replica of Dewar Double-Annular Jacketed Vessel, 1932 1932
Replica of object in Royal Institution collection: Dewar vacuum tube with mercury for reflecting surface, by Scientific Supplies Co., London, England, 1930. Replica of Dewar Vacuum Flask containing Mercury, 1930 1930