The wax box lid features a partial picture of a mockup card not included in the set. It represents a Rated Rookie of an unknown NY Yankee. Though it was never established if the card was going to be part of the release, we always had fun searching for it (just in case), then attempting to find out who it might have been.

Per a Sportzcommish forum post:
"If you have a player's card from each variation and you look at them from the front like you normally would any card, then flip them the same way the back will have a different orientation. "
https://www.tradingcarddb.com/Forum.cfm/Page/S/ID/112/?MODE=VIEW&ThreadID=17790&PageIndex=1
7th post

A good looking set with black borders. Key rookies include Bonds, Maddux, Palmiero, Clark and Jackson. Nice set.