Worn and signed by Gary Sheffield, this New York Yankees cap dates to the 2004 Opening Series, when the Yankees and Tampa Bay Devil Rays opened the season with a pair of historic games at the Tokyo Dome in Japan — a rare early-season international showcase that drew global attention. Sheffield, acquired that offseason to anchor the middle of New York's lineup, wore this cap during his first year in pinstripes, a season in which he hit .290 with 36 home runs and 121 RBI while establishing himself as one of the game's most feared right-handed hitters. The cap features the special Opening Series Japan patch unique to that event, marking it as a clearly identifiable, date-specific piece rather than a generic team-issued item. Sheffield's bold, legible signature is present on the interior brim, and the piece comes backed by a Sheffield-issued letter of authenticity, providing direct player certification of both the autograph and game use. International Opening Series games have consistently generated strong collector interest given their scarcity relative to the 162-game domestic schedule, and cap-specific memorabilia from these events is comparatively hard to find. For Yankees collectors and Sheffield fans, this piece combines a distinctive event, a notable season, and direct player authentication into a single compelling offering.