This is a Wahl uncatalogued design 12 karat yellow gold filled on sterling silver enameled fountain pen c. 1929. The design is repeating panels of straight lines with a set of two diagonal squares with a wave cut divider. The squares and bands are enameled in black. This example was restored with new enamel. The 4 15/16 inch long pen is the medium size model with a 14 karat gold Number 4 size nib stamped WAHL SIGNATURE 14K. The cap top band engraving WAHL – EVERSHARP dates the pen to 1929.