Just picked up this Flat Latch 4 screw Model 12 no dash,
C 4755xx serial range dates to about 1961/1962.
Some finish wear on the cylinder and a few scratches on the anodized frame edges with VERY low round count.



I thought it was interesting that the dash 3 has a small S&W trademark on the left side.
The older 12 no dash has the large trademark on the right.
The group shot (L to R) 12-3, 12, Nickel pre 10 four screw, pre 10 five screw.