TC26-263 COMBINATION BEVEL. Blomberg & Grundy. Extremely rare T-bevel with two scratch gauges, one extending from the bottom of the handle and one from the side. 8" blade and 5-1/2" mahogany handle, unmarked. These gauges are described on page 156 of Milt Bacheller's American Marking Gauges, but Milt was unable to find any information on the manufacturers or the patent (if any). Unlike the one illustrated in Milt's book, this one has lozenge-shaped locking screws. Clean and works well. From the collection of Steve Dice. Good+ 200-400