Stanley No. 68 rabbeting shave from the Type 11 era, 1910-18

Description

This thing pretty much defines “specialty tool”.  It’s used to cut rabbets on an outside (convex) curve.   I suspect that it was mostly used in the carriagemaking trade, where curved doors and panels were pretty common.

This particular one has the graphically appealing “v-logo” on the cutter.  The japan finish on the handles is badly worn from use, about 50% present.   The cutter’s got a good lifespan left in it, particularly considering how infrequently you’re going to need this tool ;).