completely intact and refinished surface mount depression era american factory tower cast iron push button elevator cab call box with original spring-loaded buttons

one of four matching original american antique depression era utilitarian refinished cast iron factory tower elevator "up" and down" push button call boxes

hard to find all original c. 1915-18 antique american industrial "vh-series" single crouse-hinds pendant explosion or vapor-proof light fixture with "sun-purple" glass globe or bulb guard

rare late 19th or early 20th century nickel-plated ornamental cast bronze wall-mount johnson interior residential mechanical thermostat cover with scale plate and glass thermometer

c. 1900's american antique industrial flush mount solid copper commercial building switchboard identification plaques with beveled edges

c. 1900's single american industrial beveled edge solid copper commercial building basement open switchboard "vaccum cleaner" plaque

group of three original early 20th century antique american industrial beveled edge copper metal open switchboard plaques

set of early 20th century american industrial commercial building switchboard solid copper identification plaques with beveled edges

pair of matching early 20th century american industrial single-sided solid copper switchboard identification plaques with incised lettering

early 20th century single-sided solid copper "basement" open switchboard beveled edge switch identification plaque with lightly incised lettering

original early 20th century wall-mount cobalt blue porcelain enameled western union call box with black knob and white ceramic base

original patented early 20th century american vintage industrial yellow brass and ceramic four plug socket cluster adapter

early 20th century antique american industrial bronze and sheet steel "trouble light" bulb guard or wire cage

set of original early american industrial electric double lamp patented "benjamin" socket clusters with standard edison screw base plugs

original and intact late 19th century american perkins incandescent lamp shell socket with intact key switch

original early 20th century vintage american industrial benjamin four plug socket cluster or "plural lamp socket" with porcelain ring insulators

rare early 20th century new york city subway open-ended switchboard with faux marble panel

museum quality early 20th century 2000 amp direct current thomson watthour recording meter from pope building in chicago's printer's row

late 19th century ornamental cast bronze "wood type" flush mount switchboard volmeter with original certification label signed by thomas duncan

hard to find early 20th century salvaged chicago american industrial "moving iron" type surface mount building switchboard ammeter

rare oversized antique american industrial early 20th century 1000 amp solid copper three-arm no fuse heavy duty switchboard panel knife switch

original early american industrial salvaged chicago high voltage "type d" circuit interrupter or fuse designed by nicholas j. conrad

rare original and completely intact type d "generator 1" beveled and etched glass encased sangamo watthour meter from commercial building switchboard