2017 Topps Series 1 question
Ok, I was given about 350 cards from this set today. I never do modern baseball.So when I put the cards in order
and check the singles against a checklist. I do not know how anyone could put that set together with all the variation.
But I also noticed that 2 of the cards I got have like an embossed serial number on the back of the card.The number is
located just above the team logo. Is this anything of importance.Thanks to anyone that can lead me in the right direction.
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