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Scientific American, Vol. 3, No. 20 (November 1860) (1860)

leaf 15

An illustration from Scientific American, Vol. 3, No. 20 (November 1860), 1860, leaf 15
inary keys, the inventor has written pieces expressly Fig. 1 represents a plan view of this keyboard and for the pinno, wilh chromatic keyboard; they will be held during the year, five of them must be ont of doors Fig. 2 a vertical section of tho same, with the bar and followed by compositions from… … inches long, J inch wide and PHILIFPI'S IMPROVED CHROMATIC KEYBOARD J-inch high, glued on to all English and Ameri- the keys in the above- can Gold Coin.—English here and abroad. We have the first of these pieces, mentioned place. They present a perfectly level surface gold coin is 22 parts of pare…

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