Never appeared in any Sheaffer catalogs and is surely a prototype, maybe even a one of a kind. Not a fountain pen, but a gold plated, in the usual lines and spaces pattern, Connaisseur pencil. A happy addition to my Connaisseur collection. The only Connaisseur pencil I've ever seen or even heard of. Marked with "U.S.A." and "Sheaffer" on the band.
Dennis B