Don Mattingly / Mark McGwire [A.L. All-Stars insert (Super Stars Specials)]
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Issued Oct 30, 2026
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Two-player insert card from Fleer's 1990 'Super Stars Specials' series featuring American League stars Don Mattingly (Yankees) and Mark McGwire (A's). The front uses a purple-framed photo with 'A.L. All-Stars' titling and Fleer 90 branding; the back includes a short bio and the Fleer card number 638. This is a standard insert from the 1990 Fleer base product.
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