Electrical switch, one of four, for physiological use, by C.F. Palmer, London, 1920-1940 Electrical switch 1920-1940
Electrical switch, one of four, for physiological use, by C.F. Palmer, London, 1920-1940 Electrical switch 1920-1940
Electrical switch, one of four, for physiological use, by C.F. Palmer, London, 1920-1940 Electrical switch 1920-1940
Electrical switch, one of four, for physiological use, by C.F. Palmer, London, 1920-1940 Electrical switch 1920-1940
Clear glass vessel, globular with narrow neck, rim broken, and tubular outlet projecting from base, probably English, 1861 to 1920 Clear glass vessel