If the fixed cup is right-hand threaded, it ain't English. Right-hand thread fixed cup plus 68mm wide shell = either French or Swiss, and I believe French. They have the same threads dimensions, but one is right-hand threaded for the fixed cup and the other is left-hand threaded. I think right-hand threaded means it's French - maybe someone can confirm this.

BTW, if and when you reinstall a right-hand threaded fixed cup back into the BB shell, use some blue Loctite, tighten it until it screams for mercy, and then tighten it a little more. If you don't, right-hand threaded fixed cups tend to become self-loosening about 10 to 15 miles into your first ride. Don't ask me how I know this.