Nice pocket flasher advertising Montgomery Ward's War Model Pioneer 8 Ounce Denim. As well as being a great piece of denim marketing, this also has World War II history along with it. The piece dates to around 1942-1945. The jeans were, as the flasher states, made in accordance with OPA specifications. OPA stands for Office of Price Administration. This federal agency was created by President Franklin Roosevelt and tasked with establishing price controls on nonagricultural commodities and rationing essential consumer goods during World War II (1939-1945). In May1942, the OPA passed the General Maximum Price Regulation. This effectively set the price ceiling at March 1942 levels. This is the $1.55 ceiling price you see on the tag. The agency was disbarred shortly after the war's end in 1947.