That is, a 13-2 that wasn't originally a 3" barrel version when it left the factory? Like, one that was a much more common 4" but was then cut down to 3"?
I ask because I know this can happen and does frequently happen with certain other, usually highly desirable (e.g. the Colt Python 3")...
I have a M13 salvaged at the foundry by one of the workers. Air Force stamp on backstrap is ground off, top strap and cylinder were partially torched. Who can do restoration on this? OK to email me.