Description

The 1991 Topps Error Card #270 featuring Mark McGwire is a notable collectible for baseball card enthusiasts. This particular card is graded PSA 8 (Near Mint-Mint), indicating it is in excellent condition with only minor imperfections. The error on this card lies in the 1987 slugging percentage (SLG), which is incorrectly printed as .618 instead of the correct value. This error adds a unique aspect to the card, making it a sought-after item among collectors. Mark McGwire, known for his impressive home run record, played for the Oakland Athletics during this period, and this card captures a piece of his early career. The PSA grading ensures the card's authenticity and condition, making it a valuable addition to any collection.