Original colt pistol?

[danielking1775]

I'm a musket guy, a friend has this one but this is the only two pics I have. Curious if it's a replica or original? Top of barrel markings seem correct. Thanks

 

[Bugattimiller]

Looks good from what I can see. Would have expected to see .36 cal stamped on the left side of the brass trigger guard as it appears to be a Model 1861 Colt navy revolver. Can you get any more photos?

 

[ConfederateCanuck]

Pics required of all markings and serial numbers.

 

[Joe Whitworth]

Shouldn't "Colts Patent" be on the left side of the frame?