If that Gehrig is smaller (about 5x4) than it is probably one the Yankee team issues that was issued in the late 1940's. At one time I had the original envelope they were mailed in and it was from the early 1950's. If this is the wrong size than disregard what I said. We see the DiMaggio, Gehrig taking a swing in his warm-up jacket and the shot of Gehrig and Ruppert at the water cooler sometimes as well. We sell them as such (1940's re-strikes) but there is no definitive evidence that they were not issued over a period of time starting in the late 1930's and continuing through the 1940's and early 1950's. I have a stack of others as well and they are all late 1930's players, but the look and feel match up with images issued immediately after the end of WWII.
https://rmyauctions.com/bids/bidplace?itemid=26099
https://rmyauctions.com/bids/bidplace?itemid=16486