Telegraph
Line Testing Apparatus
»Siemens & Halske«, c. 1900
Early precision
instrument for in-line use between key and long-distance cables, to test
faze angle, resistance and continuity. Excellent original condition!
Estimate: € 1,400/1,800
US$ 1,750/2,250
Reserve: € 1,200/US$ 1,500
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