All the NOS ones I picked up are now gone.
The store still has 9 used "FRONTS" for the same price.
They show wear, no holes, & some have names written on the backs.
If anyone is near Kamloops or Williams Lake, check out Surplus Herbys to see if they have any at there stores..
item number is
28704 01161
I did find one today 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