SERIES 1963A $20 FRN by COMPLEX BLOCKS Circulation production: AA. BA. CA. DA. EA. FA. GA. HA. IA. JA. KA. LA. BB. EB. GB. LB. A*. B*. C*. D*. E*. F*. G*. H*. I*. J*. K*. L*. Total: 16 regular + 12 star = 28. Special production: none. Grand total: 28 different, 28 overall.