WAYNE GRETZKY 1979/80 O-PEE-CHEE OPC #18 RC ROOKIE EDMONTON OILERS PSA 6. The item "WAYNE GRETZKY 1979/80 O-PEE-CHEE OPC #18 RC ROOKIE EDMONTON OILERS PSA 6" is in sale since Tuesday, September 4, 2018. This item is in the category "Sports Mem, Cards & Fan Shop\Sports Trading Cards\Ice Hockey Cards". The seller is "beanz1980" and is located in Thornhill, Ontario. This item can be shipped worldwide.