I need help. New member, first post. I inherited a fairly nice 1882 .45cal SAA with issues and local attempts to get answers has left me with little more than self proclaimed experts that can't agree on what they're looking at. I have the Colt letter confirming s/n date and details which was obtained in 1996. The experts mostly agree that its been factory re-worked and has a series 2 bbl, cylinder and trigger guard/strap. On the left forward trigger guard its stamped with the VP triangle and an "I" (capital letter i) stamped over it close enough that the bottom serif of the "I" touches the top of the triangle. Above all that, but on the frame is a full circled Rampant Colt. Marked on the inside surface of the loading gate is "645". On the left side, under the grip on the trigger guard is marked "340007" and same side on the backstrap is marked the same. Family members seem to recall hearing that the gun was sent back to Colt about 1907 to be "updated" but as I'm sure you guys already know, when I called, they don't keep re-work records so I was unable to learn anything new. Feel free to ask questions. I can take pictures or anything you need but as this is my first attempt to post, was first hoping to see if anyone here would be able to help me. THANKS EVERYONE! Jim