Colt single action Bisley, cal 41

Colt single action Bisley, cal 41. serial 244961, Original 4 3/4 inch barrel, excellent bore, only a few light spots, It has the cal 41 markings on the barrel modified in 40, but it is a genuine cal 41. Probably done long time ago by the customs, who didn't know the cal 41. 
All the blue has turned into brown patina, , excdept for the blue in the flutes. Works perfect, original grips are outstanding, 100 % correct and superior shooter.