If you have any additions that you feel should be added, please post them in the comments section here or in the original 1990 Pro Set Errors & Variations Master Set Checklist blog.
The following items will not be added to the Master Checklist:
-The printer’s scrap cards that have flooded eBay the last few months. This includes the blacked-out cards, smeared, miscut fronts/wrongbacks, errant color tone, smudged, etc. These cards are printer’s waste and were NOT pack-issued or meant for distribution. They were cut from sheets pulled from garbage bins. While really fun to look at and collect, they should not be considered essential to a master set.
-Wrong front/back cards. Again, these are really cool but are seldom found pack-issued and were usually cut from sheets found in the trash, making their way into the market illegally.
-Draft Day blank back/front proofs. Great, recent discovery variant proofs for Jeff George and Keith McCants draft day subset but not pack-issued or legally distributed.