[Tijeras_Slim]

The Registered Magnum was a made to order gun only, with, I believe ~5000 made before production ceased due to WWII. After the war it was made a production item (pre-27) with, over the years a 3.5" (FBI issue favorite), 4", 5", 6", and 8 3/8".

This one belonged to Patton.

[Covenantor]

The Registered Magnum was a made to order gun only...

Wasn’t it a custom among gunsmiths to make presentation models of the first ten or so, some elaborately engraved and otherwise tarted up for presidents and other prominent folk?