Here is an antique Parker Dufold mechanical pencil marked Parker Dufold Made in U.S.A. on the shaft and Pat. Sep. 5 16 on the clip. It has a lovely green and white marbled early plastic shaft, and gold tone, possibly gold filled (but not marked as to gold content) metal ends. The pencil is 5 1/2" tall. It is in very good condition, there are a couple of minor dents and some scratches to the metal.