Yesterday (and it might still be there if the boss's wife didn't ship it yet), I saw a 1911 with the import cartouches and proper lanyard with the correct mag (also lanyarded) chambered in 455 Eley... pretty flippin' sweet.
Yep, pretty cool. The Lanyarded mags were for the Cavalry so they wouldn't loose thier mags off horseback. I see them on ebay once in a while.