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Jensen Electro Dynamic Concert Speaker model A-12 loudspeaker

Jensen Electro Dynamic Concert Speaker model A-12 loudspeaker

Jensen Radio Manufacturing Company
circa 1936
Jensen Electro Dynamic PM 10-inch loudspeaker

Jensen Electro Dynamic PM 10-inch loudspeaker

Jensen Radio Manufacturing Company
circa 1939
Jensen Electro Dynamic series X model B12-X loudspeaker

Jensen Electro Dynamic series X model B12-X loudspeaker

Jensen Radio Manufacturing Company
circa 1940
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The Collection of Historical Scientific Instruments
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