This one-card set was a promo postcard issued to advertise Fleer's Sports Illustraded World Series Fever '98 set that premiered on August 26, 1998. The front features a color action photo of Mark McGwire in a white border with a small head photo of Reggie Jackson in the bottom right. The white back advertises the Mr. October insert set of the World Series Fever '98 set. Only 3,500 of this set were produced and serially numbered.
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