Went to my local gun shop this afternoon to purchase what I thought was a S&W 1917 Commercial .45 A.C.P. Turned out to be a 1917 Military so I took a look at several other offerings. I finally came away with a Model 66-1 (it won out over a Model 29-6). It's apparently a "transition" revolver as it's not pinned but it is recessed. The rear sight is not white outline but the front sight has a red ramp? It came with the Hogues in the photos but I'm looking for a set of target grips for it. I may have paid too much for it but what the heck. It locks up tight as bank vault with zero end shake. It couldn't have been shot much. Serial number (112K3XX) puts it at about 1981. That seems a little late for "transition'?