In 1886 E.A. Thiery and C.F. Croselmire were awarded patent number 333,697 for “article of jewelry and method of ornamenting the same.” And, while their patent isn’t specifically for a corkscrew, there are examples of their patented process that turn up on corkscrews every once in a while.
As mentioned earlier, I happened upon a stag handled corkscrew at Brimfield this past week which looks to have a silver overlay Thiery and Croselmire patent end cap. And, for comparison, I figured I would include images of a T and C with no material removed from the silver overlay, a handle with several sections of silver removed to show the stag handle, and finally the stag handle with end cap and a close up of the end cap itself.
Looks like T and C to me, what do you all think.