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Scientific American, Vol. 98, No. 20 (1908) (1908)
leaf 7
é which is used for handwriting: con- frame. The. paper is placéd on the corrugated plate and over it is fitted a metal guide strip-in which f for fer fer ned ny DEH foo unten v for very v for wht} Several rows of rectangular openings are cut, -The slate pencil is im the shape of an awl, and is… … © 1908 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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