As has already been stated here, document everything. I would have the seller take another picture/scan of the card with his Ebay id clearly visible (if they haven't already). Keep that, and note anything that makes the card uniquely identifiable. Keep any correspondence you have with the seller. Don't let them beat around the bush. Be firm, but polite, and tell them you need to know, definitively, that the card is being sold as an original.
It saddens me greatly that we have to take such precautions in our hobby, but it's always best to be proactive. You almost have to approach it from the mindset of "am I doing everything necessary to ensure that I could win a dispute, and get my money back?" You're thinking critically, Taylor, and that's great. A healthy amount of skepticism is a necessity, and any legitimate seller who is dealing with you ethically will appreciate, and understand, what you're doing. I've only sold cards a few times, granted, but whenever I'm dealing with a buyer, I will do whatever is necessary to assuage any concerns they might have. Reputation is everything in our hobby, and you're not only protecting yourself, but you're also creating an expectation with these sellers that you're a fair, but discerning customer. That kind of reputation gets around, and will only benefit you in the future.
Good luck with your potential buy, and should you get this card in, I'd love to see it!
Bill
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Building these sets: T206, 1953 Bowman Color, 1975 Topps.
Great transactions with: piedmont150, Cardboard Junkie, z28jd, t206blogcom, tinkertoeverstochance, trobba, Texxxx, marcdelpercio, t206hound, zachs, tolstoi, IronHorse 2130, AndyG09, BBT206, jtschantz, lug-nut, leaflover, Abravefan11, mpemulis, btcarfagno, BlueSky, and Frankbmd.
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