I decided to order the other two BYN Edgar Martinez cards from the seller in Puerto Rico, these are from the 1989-90 Blanco Y Negro Update set. They are cards #48 for his All-Star appearance and #56 league batting leader. He ended up the batting .424 in San Jose that season, batting 82 points higher than the #2 player in the league. That's Edgar just being Edgar.
Some how the printer was able to get a diamond cut along the top of the #48 card but square corners along the bottom of the card, that takes talent.