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细节
An M.W.T. Co. Ltd. short-wave Mark III tuner
No. 3788, with CCC and ATC variacs, twin crystal change-over switches, buzzer and loose coupling, A.T.1 selectors on ebonite panel, beside battery compartment enclosing two 'S' type dry cells, watch holder and crystal box with instruction sheet inside the lid, in teak case -13¾in. (35cm) wide, dated 1918
No. 3788, with CCC and ATC variacs, twin crystal change-over switches, buzzer and loose coupling, A.T.1 selectors on ebonite panel, beside battery compartment enclosing two 'S' type dry cells, watch holder and crystal box with instruction sheet inside the lid, in teak case -13¾in. (35cm) wide, dated 1918