Need help for my friend

Here are the additional pictures. Unfortunately, I do not have a picture of the barrel lettering. Please feel free to comment and I look forward to reading your opinions.

For the definitive answer, please send to Mr Kopec.

Having said that, look at post # 11 in the following: http://www.coltforum.com/forums/single-action-army/116457-4-digit-u-s-colt.html

The U.S. on that revolver looks significantly different than yours. Again, look at post # 11, NOT the subject matter of the thread, as it was strongly suggested that revolver is not correct.

Also, note the serial number on the backstrap. It shows signs of more wear than the rest of the revolver. It could have been buffed or there may be another explanation for this, but it seems surprising it would show this degree of wear. For the number 3245, the 4 is visible, and the top part of the 2. This means that the 5 would have to be to the right of the 4, and the midpoint of this serial number approximates the location of the 2, if that is indeed a 2. It could be a 3, 8, or 9 as well. Not to say that this 4 digit number might not actually be off centre, but it seems fairly significant, and it is possible, although my comment is by no means definitive, that the backstrap could have belonged once to a revolver that contained a 5-digit serial number, the 3rd digit being a 2, 3, 8, or 9, and the 4th digit being a 4.

Again, I cannot stress strongly enough, if you want to know for sure, sending to Mr Kopec: John A. Kopec

Look if there is a C in the hammer slot, the bbl address in italics, the serial on the bbl is under the ejector tube.