PORTABLE SWITCHBOARD No. 860
For 60 metallic circuits, with carbon lightning arresters in special strips, and plugs and cords for making the connections; also fitted with hand micro-telephone No. 490 with cord No. 7052.
This switchboard is specially useful for military purposes, in cases where a temporary telephone exchange has to be erected. It is provided with a complete operator's outfit.
Made to order for any number of lines.
Height of case, 31 inches
Width of case, 14 inches
Weight, with lightning arresters, 119 lbs.
Taken from the Ericsson Telephone Catalogue 1903
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