The "Polo Grounds Game" issue is named due to the green-and-white panoramic photo of the Polo Grounds that appears on the reverse of each of the issue's 30 cards. Intended to be used to play a baseball game the cards feature a number of the era's stars including Christy Mathewson. Undoubtedly one of the issue's key cards the image of Matty delivering a pitch is one of the greatest images of Big Six on a card; the NM 7 grade assigned by PSA indicative of the card's slight wear and exceptional eye appeal.