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Musical Smart Set

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Series of U.S. releases on RCA Victor label that began in 1938 and ran until approximately 1952. Additional Musical Smart Sets were released after that, but they follow catalog numbering systems of 10" LP's and Double EP sets (x-3000 - x-3300). Any discs marked with these prefixes (seen below) refer to a disc from a set. PREFIXES: P : Musical Smart Set [Mono x 78 rpm x 10 inch] WP : Musical Smart Set [Mono x 45 rpm x 7 inch] EPA : EP [Mono x 45 rpm Extended Play x 7 inch] LPM : LP [Mono x 33.3 rpm x 10 inch] As added into the archive.org site the 1951 catalog https://archive.org/details/RCAVictorCatalog1951/mode/2up