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fkwForgot to say, there are 3 Blue Ribbon sets, a small handcut card (1930) like I pictured above, a large cabinet card (photo area is 5"X7")(1931), and a large premium 4.9" X 6.9" (1931) that says "Compliments of Blue Ribbon" on bottom.
The only Cubs Picture pack cards that might look similar are larger at 9.5" tall (1930), or 8.9" (1936)