Part of spectrophotometer developed by Glenn Millikan at Cambridge 1938-9 Part of a Spectrophotometer, 1938-1939. 1938-1939
Electric motor for freezer fan, c 1920. Black open type housing circular disc motor, early squirrel cage type. 90 - 100 cycles, 230 Volts, No 113006. One oil cap, one missing. Probably used as a refrigerator fan motor. Electric motor for freezer fan circa 1920