Heavier sturdier paper than most. 1950’s Pachmayr Gun Works Catalog Custom Gun Craftsmanship California USA. The only support of my 1950’s date is the seller information when I was a buyer. I did not locate any dates in catalog. No comparable listed or sold. Prices appear probable for the 1950’s. A 1940 cover picture is very close to this one with the same size and placement of the squares. Shipped in rigid packaging.