I have all but the following (S1-#1,18,27; S2-#27). They are smaller versions of the 1991 Topps regular base set. I have some extras from this set if interested. Since I was successful in completing the 1993 set, I thought I'd take a shot at completing this one. PM if I forget to check back. thanks
1991 Cracker Jack
Series 1
1 Nolan Ryan
18 Rickey Henderson
27 Mark McGwire
Series 2
27 Ozzie Smith
1991 Cracker Jack
Series 1
1 Nolan Ryan
18 Rickey Henderson
27 Mark McGwire
Series 2
27 Ozzie Smith