B63-373. JEWELER'S DRILL. Whitney Patent IOB. Tower & Lyon advertised these drills as the Whitney patent, but the 5/4/86 patent date given is actually for a method of making drill bits. The drills are highly prized for their elaborate red and gold pinstriping, which on this example is complete and immaculate. In its original finger-jointed wooden box with original wrench and one bit, label in the lid is complete with water stain, box has damage to one corner and loose hinges. From the collection of Steve Dice. Fine 500-1000