This vintage vest was made in the 1930s by Red Head Brand under their Blue Bill label. In the 1940s, Blue Bill changed their logo, and began including the (R) symbol. It has closed bottomed canvas shotgun shell pockets, 38 on the front and 18 on the back, for a total of 56. The shotgun shells on the back take the place of the more traditional belted back. The vest has a five button front.
Also see, Red Head no. 1
and Red Head no. 2
Chest (pit to pit): 19″ (doubled = 38″)