SERIES 1950D $10 FRN by BLOCKS Circulation production: KA HB JB KB AC CC DC EC FC LC AD LD GG GH BI BJ BK A* B* C* D* E* F* G* H* J* K* L* Total: 17 regular + 11 star = 28. Special production: none. Grand total: 28 different, 28 overall.