Today I was digging through a pile of "FRONTS" & found this one that is a little different.
It has a rounded bottom
No markings on the inside
On the top strap yolk it has a circle with what looks to be the top half of a 5 point star & under it it looks like
nl 507
Under that is a large "
F" (front?)
&
DOM. A. CO
1951
Hard to see markings.
Rounded bottom
Pic for referance of the circle marking, with "ARROW" ?