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Etched into the run-out or matrix is a series of numbers - 45-7579 37 and 45-7580 37. The "3" in this equation is smaller than the rest of the numbers. The REPRO, as my research has garnered, do not have etched in numbers. Probable single pressing in 1954. Unmarked label. Media looks VG and it plays VG on both sides. The sizzle is light to modest.