I didn't notice the barrel sticking out. That helps solve the mystery. I was thinking it had to be a snub, but it isn't.
I was focused on the lack of a hammer nose (hammer mounted firing pin) which makes it a rim fire. The only RF K frames I could find were Models 17 and 48, but according to wiki neither of those ever came with barrels less than 4"
So it's probably a Model 17 or 48 named Fred with a barrel at least 4" long.
Here's the ebay listing for the holster. The 32 on the back of the holster means K frame with a 2" barrel, but that model will cover an entire 3" barrel.
I'm going to guess 14 based on the target goodies. There were a few 4" 14s made. If not a 15 or 19 with target options. A view of the other side of the trigger would help because the 14's trigger overtravel stop would be visible. Or not.
Heck, it could probably even be the Model 53(?) in .22 jet?
Carmady, Why would a feller want to tease us with a Guess The Revolver game when you don't know either? Hoping somebody will show up and tell us who's right is where the fun is! Haha
"Heck, it could probably even be the Model 53(?) in .22 jet?"
No.
The Model 53 has a very distinct hammer.
The 53 hammer has what appears to be the hollow rivet hole typical of centerfire S&Ws of this period, but it also has separate piece on the rear top of the hammer that is the selector for center/rimfire.