I finally got a .375 wide hammer for the gun from Numrich. The problem now is the rebound slide won't return without retracting the hammer just a little. I've tried a heavy rebound spring with no change.

The customers 68-2 is the LAPD issue gun stamped on the barrel. The single action notch is very nicely ground off, where as the Mods 36 and 14-5 were crudely done.