7304-074 THOMPSON patent mortise gauge. These uncommon and attractive gauges are either unmarked entirely or simply marked "patent applied for", but the consensus is that they are examples of Thompson's 1900 patent. See Bachellar, p. 112. This one is rosewood and brass, and more closely resembles the patent in that it has knurled brass locking screws rather than the thumbscrews more often found. Crack in head with three holes that presumably have nails to hold it together. Brass slightly tarnished, points good, user initials stamped in stem. (PLH1067)