The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 324
nce on theextreme right of Fig. 295. Operators Service Meter Rack.—This is similar to thatabove described, but each of the 2 bays has a capacity foronly 200 meters. The same kind of meter is used. Thisrack is often accommodated in the switch-room (as at Barns-bury), so that it may be convenient for…
Telephone
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