I pick up this shell today from a fellow who claimed it was a 88mm of course it's not. I think it's a 105mm but not sure what war. The rim dia. is 5 inches the inside dia. of the shell is a little over four inches. And the over all lenght is 19 3/4 inches. The larger German shells are a bit hard to find here on the west coast. Most have been cut down and made into ash trays.