I believe these are actually from 1990, not 1991. Every photo is from the 1989 season, but I don't think it's from 1989 as Phoenix was at the very end of the season. I suppose it is possible though that they could have been issued in December '89. I'm assuming whoever entered them knows more about them than I do as I bought my set listed as "unknown Petty set" on eBay. It stands to reason to me that they would have included 1990 photos if it was a 1991 set, and possibly talked about him upcoming retirement tour in 1992.
VERY slow trading due to health problems. Not transferrable so safe to trade with, just moving is painful and can't always access the cards.
Cardboard History My COMC
New Collection Website: Cardboard History Gallery (Still under construction)
Tips on how to make your scans look like the card does in hand (No more washed out, fuzzy scans!):