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Label: RCA Victor Red Seal
"New Orthophonic" Frequency Test RecordFrequency test record ...especially to assist in adjusting phonograph reproducers to the proper response for playing the "New Orthophonic" records.
7" red vinyl record with 10.25" x 11" instruction sheet printed on one side only. Cover is cardboard box 7.25" x 7.25" x 0.5".
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