1973 Topps Baseball Complete Set Break 660 Spot Random Card. The set is highlighted by the Mike Schmidt Rookie PSA 8, Goose Gossaage Rookie PSA 8, Roberto Clemente PSA 8, and Thurman Munson PSA 8! 660 cards in this set break. 4 total cards have been graded in this 1973 Topps baseball set. The condition of the set generally ranges from EX/MT to NM/MT and averages Near Mint to Near Mint+ with some better/lesser. 660 cards total in the 1973 Topps baseball set. 660 spots total.