Catalogue of O.D. Pierce & Co. manufacturers of and dealers in electrical supplies ... (1893)
O. D. Pierce & Co. · O. D. Pierce & Co. · leaf 17
AUTOMATIC DROP. … Toil attachment is used to clot* a bell circuitautomatically so that the bell will ring until ballled to its proper position,afade in polished Walnut case $1 50 PA Stewart Carbon Battery I OR OPEN CIRCllT I si.
