http://www.ebay.com/itm/271286311294
This vintage hunting vest was likely made in the 1930s or 1940s. It has a five button front, belted back and thirty four loops for both 10 and 12 gauge shotgun shells. Later vests had generally switched away from the closed bottomed canvas loops, and to easier to produce knit loops, as well as switching from belted to plain backs. This example is made from fairly lightweight, breathable canvas.

Chest (pit to pit): 23-1/2″ (doubled = 47″)
Length: 21″