OB, I had a chance to look at two Ruger old Buckeroo .45 Colt CAS revolvers--one was 35 prefix, the other 36. I bought the one with fewer scratches and blemishes as they were priced the same. I remember examining one and then the other rather than side by side for comparison so didn't notice a clonelike identicality of appearance greater than one would expect in two of any model of revolver with identical barrel length, finish, grips. The stuff appears to wear well based on age of the gun and it's primary use which I assume would be a fair volume of competitive shooting.
jack