Warren Telechron Company, Ashland, Mass., ÓFrequency ComparatorÒ, Model M163, Type B3, 110 volt 60 rpm, serial No. 190057A, c1930
Anonymous (not verified)
24 October 2024
Warren Telechron Company, Ashland, Mass., ÓFrequency ComparatorÒ, Model M163, Type B3, 110 volt 60 rpm, serial No. 190057A, c1930
motor runs and hands move. Diameter 17Ó...
