SNES Lable Variation??

[A2600]

I have my Super Mario World Cart from 1991 and I recently picked up another Super Mario World cart for a friend and noticed that my cart had the Super Mario World side by side while my friends has the Super then under it Mario World also the Background is lighter on his!! Also on the top of the cart I have Super Mario World in center and in Bigger font while his is smaller font and shifted to one side, what made me approve that mines was a 1991 release was the fact of the serial # on the cart SNS-MW-USA (me) -- SNS-MW-USA-1 (his)

 

Have I discovered something here?

[Adrian M]

Super Mario World was sold at retail in 1992 (I believe) when Nintendo began selling the SNES CORE system (no pack-in game).

 

It's possible the variation comes from the fact that you may have one of these retail box later production run copies.

[A2600]

I know for a fact that the Super Mario World (side by side) was a 1991 because it was the pack in that came with the SNES, the other might be a 1992 Retail