The 1987 Topps Mark McGwire #366 trading card is a sought-after collectible in the sports memorabilia market. This baseball card features the future Hall of Famer from his time playing for the Oakland Athletics in Major League Baseball. As part of the base set released by Topps in 1987, this card is a popular choice among collectors looking to add a piece of baseball history to their collection. With its iconic design and significance in the career of Mark McGwire, this card holds value for fans and collectors alike.