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Scientific American, Vol. 69, No. 25 (1893) (1893)
leaf 3
t wheels on the drum, engaged by pawls on a trans- channel that leads it to B, where it rests upon the verse rod having at its outer end a handle, whereby piece, C. If the button, D, then be pressed, the ex- the pawls may be thrown into or out of mesh with the tremity of its rod, meeting the coin,… … © 1893 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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