This is a Wahl model 433A Colonial pattern 12 Karat Yellow Gold Filled fountain pen c1921-1924. It is the shortest, at 4 5/16 inches, of the three sizes of clip metal pens with the engine turned Colonial design, a straight line pattern on the cap and barrel. The barrel has a rectangular blank for engraving. It features a Number 3 14 karat gold nib stamped Wahl Tempoint Pen, possibly indicating that this is an early production pen. Wahl marketed pens under the Tempoint name at least as late as 1920 before branding their fountain pens as Wahl in 1921. The clip and cap top band are stamped with the Wahl name. Model 433 also came as a ringtop pen and a choice of 12 karat yellow gold fill or sterling silver for $7.00 or 14 karat green gold fill for $8.00. Matching Eversharp pencils were available for $5.00 and $6.00, respectively.