242: THREE MANHATTAN ELECTRICAL SUPPLY TELEGRAPH ITEMS

Lot includes a sounder - with Manhattan Elec. Supply Co, New York. and 4 OHMS. Also, Relay - Incised in wood: Manhattan Elec. Supply Co, New York, 150 OHMS. Lot also includes the booklet 'The Philosophy and Practice of Morse Telegraphy', Manhattan Electrical Supply Co., 42 pages, illustrated.
Measures 3 x 5.5 x 3.25 and 4.75 x 8 x 4 inches.
Very good condition.
$75 - $150