Lot Essay
From Manchester transmitter 2ZY.
Details
A transmitter variometer,
Type S1610, by Radio Communicatiopn Co. Ltd. London, with revolving copper helix within two outer helices, in plywood frame -- 9in. (23cm.) wide
Type S1610, by Radio Communicatiopn Co. Ltd. London, with revolving copper helix within two outer helices, in plywood frame -- 9in. (23cm.) wide