Has anyone heard of or seen this card?

[SSFD132]

I haven't collected in quite a while and found some cards that had since 1990's.
I have no clue where to find out more about a card I have.
It is out of a 1990 Upper Deck series 2 pack. On the front is Sandy Alomar Jr. in Cleveland uniform (#756) however the reverse is the "corrected" Ken Griffey Jr. #156 (with only the misspelling.)

Has anyone heard of this?

The attached photos are the best I can got to show it.

Thanks in advance.

[michigandan]

It's a printing error, common for the era. Could command a pretty penny with JR being on the back.

[SSFD132]

Michigandan. would it be worth sending to be graded? Where would I go to find a value?

[pwaldo]

I don't even know if they will grade it because it is an error card. With it being Griffey you could always get more but if I had it I'd sell it for $1-$5. Probably take awhile to move it at $5 but to the right Griffey collector it would move fast.