. Illustrated catalogue and price list of bells, electric gas burners, batteries, push buttons ... . f • I .<• - a -i| NORTH FOURTH STREET, PHILADELPHIA, PA. 43 SWITCHES Novelty Hollow Base Yale Lock Burglar Alarm Switch. Cat. No. 900. 1 Point, each, 901. 2 902. 3 30 33 For use on doors of residences, stores and otherbuildings connected with burglar alarm systems, so thatpersons having the proper key can go in or out of thebuilding without ringing the alarm. Cat. No. price 903. Each, fU 00

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Keywords: ., bookcentury1800, bookdecade1890, bookidillustratedcatalogueandpr