[whiteymet]

Ben has it correct.

Dan Mabey has posted recently here on Net 54 that he is getting ready to offer some of his superb books about the different Post cereal issues

In his book about the1963 set he notes that the Stafford card was issued on two different cereal boxes. A 13 oz Alpha Bits and a 12 oz. Post Toasties.

He goes on to describe how to tell the differences between the cards for those working on a Master Set.

Among the descriptions are note the color of the grass above his right shoulder. On the Alpha Bits card it is deep green while the Post Toasties has a lighter shade of green. The stands on the Alpha Bits are blue while the Post Toasties is purple/gray.

So the card with the red line to the border is off of a Alpha Bits box while the shorter line is from a Post Toasties box