I just grabbed a 67-1 I stumbled across. The timing/lockup are the stereotypical “bank vault tight”. It has to sit in Colorado 3 day gun jail so it’ll be a bit before I bring it home. Serial prefix is AHY but I didn’t see it in the SCSW, not uncommon I know. The barrel isn’t pinned. Here’s a quickie pic:

Four numbers too short... 1985

Oh and the first two numbers are 67