Dale Earnhardt Sr. Printing plate question.

[NotoriousRED]

I recently had an opportunity to purchase a Dale Earnhardt printing plate (no clue on product or year) from a co-worker of my father's. I usually only do baseball/football cards, so I have no idea what something like this would be worth (and how much I should be willing to pay). I haven't been able to find much on ebay, so I figured BOC Forum would be as good of a place as any to find out a ballpark price. Thanks in advance!