Price guides for TELEGRAPH SWITCH KEY & TRIANGLE...

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TELEGRAPH SWITCH KEY & TRIANGLE...

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TELEGRAPH SWITCH KEY & TRIANGLE
© BRUNEAU & Co. AUCTIONEERS, Cranston, RI, USA

TELEGRAPH SWITCH KEY & TRIANGLE BOX SOUNDER United States,20th CenturyKey marked "POLE CHANGER KEY, 1-B, W.U.TEL.CO." and "J.H.BUNNELL& CO. INC.NEW YORK,...

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