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Schaff Piano Supply

How to Test and Regulate the Auto-Deluxe Welte-Mignon Reproducing Piano

How to Test and Regulate the Auto-Deluxe Welte-Mignon Reproducing Piano

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Reprint of the 48 page book of instructions on "How to Test & Regulate the Auto-Deluxe Welte-Mignon Reproducing Piano."
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