7002-192. BATES PATENT marking gauge. Patented in 1896, featuring an elaborate cast bronze adjustable head designed to be used on beveled and curved edges. One of the rarest and most gizmoish of the marking gauges, the head is in good condition with all its parts and clearly marked with the patent date, some tarnish to brass. Stem has some wear and it appears a user purposely beveled the edges of one end. Good 50-100