The pen is marked WAHL EVERSHARP, MADE IN CHICAGO U. A, just below the top cap ring and above the Gold Seal.
This pen has a visulated section which I don't recall seeing before on Eversharp pens of this vintage. Section and feed are flawless. The nib is a very nice WAHL, EVERSHARP, 14K, GOLD SEAL, MANIFOLD. It is of course quite firm, fine width and also flawless condition.
The item "WAHL EVERSHARP GOLD SEAL RING TOP, GFT, LF, JET BLACK, MANIFOLD NIB, c1930" is in sale since Thursday, September 13, 2018. This item is in the category "Collectibles\Pens & Writing Instruments\Pens\Fountain Pens\Wahl, Eversharp". The seller is "rgbett" and is located in Mount Dora, Florida. This item can be shipped worldwide.