That looks like the girl in the Chesterfield cigarette ad, same Model 21, same turkey. Notice the Chesterfields in her left hand. I understand that the Chesterfield ad was in a large format magazine in 1941. I don't know how Winchester got a vent rib Model 21 into a Chesterfield ad, but it took them four years to get it into a Super-X ad. Is this a real Super-X envelope or an ebay fake? I've never seen this one before. Great color. The girl is hot young actress Marjorie Woodworth, famous for her work in Hal Roach films.