APPAREILS TELEGRAPHIQUES A TRANSMISSION EN DUPLEX SANS CONDENSATEURS SYSTEME BRASSEUR & DE SUSSEX. EXPLICATION & DESCRIPTION PAR S.W. DE SUSSEX.

Bruxelles: Typographie Ve Ch. Vanderauwera, 1878. 16pp. Half-title. Black and white diagrams of telegraphs on six folding charts. Original printed front wrapper [chipped, worn, paper stamp remnant]. Minor foxing and wear. Good+. OCLC 44061641 [1]. Not in Eberstadt, Decker. Item #19211

Price: $125.00

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