1975 Topps Baseball Complete Set Break 660 Spot Random Card. The set is highlighted by the George Brett Rookie PSA 8 and the Robin Yount Rookie PSA 8! 660 cards in this set break. 4 total cards have been graded in this 1975 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. The other 2 graded cards are #500 Nolan Ryan PSA 7 and #623 Keith Hernandez Rookie PSA 8. 660 cards total in the 1975 Topps set. 660 spots total.