Filtered it by card number and it could be this set. No guarantee since there are no images, but could very well be it. Every card in the checklist is a different player, so I'm really not sure if the back of you're card means collect all 9 Pete Alonso cards or just all 9 cards from the set.
If you think it's an on-demand card, it could be this set. Doubt it though becuase the card you showed above doesn't look like he just hit his first home run.
If I had to guess (which I do in this situation), I would say it's the first one.
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FOR SALE/TRADE: View my profile for details! If there's a certain player you want, ask me about them, I'll probably have a card of their's that I'm willing to trade but haven't marked on my FS/T list. For more specific info, visit profile or message me.
