Another "Pencil in the Iron Mask"

Back on April 2, I posted an article about Harry Esterow’s unique clip. Another one surfaced recently that added another clue.

This one, in addition to the patent number, indicates that it’s from Brooklyn, New York and sports the moniker "Ballerina Jr." . . .

NOTE:  This article is now included in the print version of The Leadhead's Pencil Blog, available anywhere you buy books, or also from The Legendary Lead Company.

To order, here's the link:  Volume 1 at Legendary Lead Company