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Scientific American, Vol. 40, No. 3 (1879) (1879)
leaf 3
f graphite the company was awarded the gold medal at the Paris Exhibition of 1878. The most interesting mechanical processes in the Dixon Works are to be found in the Pencil Department, which is the several operations of making the leads, gluing the pencil strips, and bundling the pencils. The… … manufacturers, Messrs. A. W. Straub & Co., 2281 Wood | are made in the form of rectangular parallelograms, and street, Philadelphia, Pa. have elliptical apertures through the middle. © 1879 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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