[Cliff Bowman]

I am very confident that the sheet with Pete Rose in the upper left corner and the sheet with Hank Aaron in the upper left corner are Topps and the sheet with Bill Russell in the upper left corner and the sheet with Bobby Mitchell in the upper left corner are O-Pee-Chee (OPC). In trying to figure which ones are which I noticed that all 1976 Topps sheets have the dotted line along the bottom, the Bill Russell sheet and the Bobby Mitchell sheet do not have the dotted line along the bottom of the sheet. Also, all of the Topps sheets have a Checklist in the lower left corner other than the two updated sheets with the Traded cards.