Under the assumption I could hold off on buying lesser cards to actually save enough to pay $10k+ for a card, I would get a 1887 Kalamazoo Pittsburgh Alleghenys team card and a Plank. Since it isn't realistic for me to save money, I would trade these four cards for either one
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Check out my two newest books. One covers the life and baseball career of Dots Miller, who was mentored by Honus Wagner as a rookie for the 1909 Pirates, then became a mentor for a young Rogers Hornsby.
https://www.amazon.com/dp/B0CV633PNT The other has 13 short stories of players who were with the Pittsburgh Pirates during the regular season, but never played in a game for the team
https://www.amazon.com/dp/B0CY574YNS