Wittner A440 Tuning fork, round end. Unused
Wittner Tuning Fork A440, 924-A-1
Wittner Tuning Fork A440 Made In Germany
FOM Tuning Fork A440 (0811)
Vintage Wittner Tuning Fork In ‘A’, 440, Germany
523,3 Hz Wittner Tuning Fork
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