Item- Pocket Watch Case. Brand- Illinois Watch Case Co. Model – For Elgin. Composition – Sterling Silver. Case measurement – 48.2 mm, 39.65 at the tiny ridge on the inside, and 39.1 at the solid middle of the inside. Ood used, Bow and Crown are good. I don’t know if either are original. Crystal has some chips along the outside. Case is nice with 1 tiny Pin Ding on the back. Check out our other Watch Auctions.