I don't know anything about the sleeves, but UltraPro makes 15-card album pages for that size of card. That's what I use. They also make toploaders for that size of card. That's how I have my single 1910 tobacco card stored.
NO PWE's EVER!!! PLZ PM me 1st before sending a trade or buy offer.
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Largest total PC card collections by Team, then Athlete (as of 3/31/23):
STL Cardinals (MLB) - 8700+; Carolina Panthers - 2800+; GB Packers - 1700+ cards
Mark Martin (NASCAR) - 2034 cards; Jimmie Johnson (NASCAR) - 1776+ cards; Jeff Gordon (NASCAR) - 1563; Ricky Rudd (NASCAR) - 828; Ozzie Smith (MLB) - 692+