The first one was built from a post-war Heavy Duty 38/44
I installed a 3 1/2" re-bored barrel, re-cut the chambers to 44 Spl.
And added my rough duty rear sight...Adjust for elevation only.
The 4th one was a re-chambered cylinder like 38/44 above,
but with a 3" 24-3 barrel installed with the rib and ramp milled
to the correct height for the front sight blade w/ivory bead.
.