Catalogue of O.D. Pierce & Co. manufacturers of and dealers in electrical supplies ... (1893)
O. D. Pierce & Co. · O. D. Pierce & Co. · leaf 51
4 Maroon Mohair 90 78# Black and Green Mohair IX inches ......... 1 00 77 Without outside covering. 1 inch Diameter 50 Any color of Mohair or silk to order. 50 O. D. PIERCE & CO., PHILADELPHIA, PA. SPEAKING TOBE flPPflRflTOg. … No. 1203 Thie mouth piece is madein j>o1ished bronze. Price ........ 5u 45 No. 1203 No. 1202.Thii mouth piece is made inpolished bronze and is very neat In ap-pearance. Price each £o 00 No. 1202 Speaking Tube Supplies Tm iul>e in five foot lengths. e i inch di&metei \^r ion feet \% « \% *…
![An illustration from Telephones and telegraphs: 1902 : [and Municipal electric fire alarm and police patrol systems] (1906)](https://img.insideoutlibrary.com/img/200/ia-cu31924022817674-60-14.webp)