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Ricky YI have complete TOPPS sets of the following.
1970
1971
1971 Greatest Moments set
1972 (mostly made up of vendor runs purchased way back when from Stan Martucci)
1973 (including blue team ck lists)
1974 (including traded)
1975 Reg and Mini
1976 (including traded)
1977
1978
1979
I just sold off my post 1979 sets...I had 1980-1988. I wasn't looking at them and it took up too much space. 
Just looking to upgrade some of the cards in the above mentioned sets as now my focus is on type cards (ala Leon although not to his extensive scale) and Exhibit cards of HOF players.
I'd also like to get my hands on one of the 1977 TOPPS proof cards that shows players with different uniforms than the regular issues (like Reggie Jackson in a Orioles uniform)
Ricky Y