That is a great looking gun. I would have been turned away by the barrel though as I don't shoot competitively which is what that gun is really for.

I just can't understand why a gun in that great of condition would have had the target hammer replaced with a semi-target hammer. Unless the original owner didn't like the full target hammer but was stuck with it because that's the way it came.

I would just leave it as is and call it a day. Take it out and enjoy it. I like my 17-4, one of the last P&Rs, and it is very accurate. Dispatches rodents quite nicely. One of two S&W revolvers I will ever own.