Scarce c. 1860s E. Eberhard Faber Polygrade Drawing Pencils in Original Case with Snap ClosureI love pencils, and pencil boxes, but I am not a pencil connoisseur so I did not know, in finding this box (in southern Maine this week), how early (sometime between 1855 77) and how notable it is among pencil aficionados! Faber polygrade pencils, launched in 1837, were important in offering pencils according to a system of standard grades, and established the Faber name globally. They were also the first by Faber to use the Cont Hardmuth process of