Yes 2" is rare on a Regulation Police (Mod 33) I frame. A decade later in '74 both the 32 and 33 were discontinued.

Technically it's a Terrier (Mod 32) with a sq butt option if it isn't marked Regulation Police on the barrel.

The .32 Models 30 and 31 merged into only one model in 1974, the M31 with rd or sq butt option and either barrel length, 2" or 4", which was discontinued 1991.

__________________
Jim
S&WCA #819