I'm willing to bet $100 that the gun is not an original 45 Colt. Heres the deal, order the letter, if it letters as an original RCMP 45 Colt I'll pay the $100. If it turns out to be a modified .455 you pay the $100. I'll be happiest if it letters as an original RCMP 45 Colt as I've never seen one. Why would a 2nd Model built in 45 Colt have gone to Great Britain for WWI service as indicated by the British acceptance stamps on the frame? Good luck.

Jeff
SWCA #1457