B66-450 COMBINATION TOOL. Thomas Patent. Very rare example of the combination bevel, try square, marking gauge, rabbet plane and level patented in 1882 by Carroll Thomas of Lincoln, IL. There are only a handful of these around and the manufacturer is unknown. See PTAMPIA I, page 210. The characteristic red japanning on the handle is about 75% complete, the blade has surface oxidation but no rust or pitting, and the button that locks the sliding marking gauge point is stuck; otherwise clean and complete. One of the great combination tool gizmos. Good 600-1200