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Bruesofor minor leaguers thru HOFers. There are jersey cards out there with portions of a Johnny Evers jersey, Ruth, Dimaggio, Gehrig, Mantle, etc. (The Britney card might have been from the American Pie series, which have "swatch" cards of shirts, etc from people like Elvis Presley, Humphery Bogart, etc.)
Whoever came up with the idea of making jersey and bat cards gave the card industry a big shot in the arm. Then there are of course the "cut signature" cards which usually have the signature from a cancelled check or something similar attached to a card and include Hall of Famer autographs as far back as Anson, Matty, Wagner, Walter Johnson, etc.
One of the more attractive of the jersey cards has 3 swatches on it- one of each of Babe Ruth, Ty Cobb and Honus Wagner. Those cards regularly e-bay in the neighborhood of $700.