This is a Superite Junior gold filled wave panel design ringtop tiny fountain pen c. 1923-1924. Superite was the pen and pencil brand of the De Witt–La France Company, founded by William P. De Witt and David J. La France in Cambridge, Massachusetts about 1918. The company made metal pens and pencils similar to the more well known Wahl Eversharp designs from the same period. There is limited information about the company, but they did patent improvements to the clip and lever fill mechanism that helps date certain products. This 3 9/16 inch long pen has SUPERITE JR over 1/20 GOLD FILLED PAT. PEND. on the barrel near the section threads. The lever mechanism patent for this pen was applied for March 22, 1923 and granted April 15, 1924, so the patent pending mark would date the pen about 1923 to 1924. These pens can be found with Superite and S stamped gold nibs. This one has a Warranted 14 karat gold flexible oblique.