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細節
A Weconomy Loudspeaking Amplifier
in mahogany case with hinged front and lid, circuit diagram and BBC transfer (lacking valves); and a Sterling No. 1 crystal receiver in walnut case with instructions in lid (2)
in mahogany case with hinged front and lid, circuit diagram and BBC transfer (lacking valves); and a Sterling No. 1 crystal receiver in walnut case with instructions in lid (2)