Keyboard
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A piano keyboard.
Galleries
Stringed Musical InstrumentsSource
Elroy M. Avery School Physics (New York: Sheldon and Company, 1895) 248
Downloads
2400×554, 305.5 KiB
1024×236, 37.3 KiB
640×147, 19.9 KiB
320×73, 8.3 KiB
A piano keyboard.
Elroy M. Avery School Physics (New York: Sheldon and Company, 1895) 248
2400×554, 305.5 KiB
1024×236, 37.3 KiB
640×147, 19.9 KiB
320×73, 8.3 KiB