WTTF - Higher-Grade HOFers in only the following back variations
 

AB 350 No Frame
AB 350 Frame
Sovereign 150
SC 150 Fact 649 Overprint
SC 150, Fact 25
SC 350-460, Fact 30

I also need a nice higher-grade Old Mill Southern Leaguer and a T215-1 Red Cross

Have many good cards to trade, all with rare backs and all graded 5 or better.