SERIES 1990 $20 by COMPLEX BLOCKS Circulation production: AAdc BAdc CAdc DAdc EAdc FAdc GAdc HAdc IAdc JAdc KAdc LAdc IAfw LAfw ABdc BBdc DBdc EBdc FBdc GBdc HBdc LBfw ACdc BCdc DCdc ECdc FCdc GCdc LCfw ADdc BDdc EDdc FDdc GDdc LDfw BEdc FEdc GEdc LEfw BFdc GFdc BGdc GGdc BHdc BIdc BJdc BKdc BLdc BMdc BNdc BPdc BQdc A*dc B*dc D*dc E*dc F*dc G*dc H*dc G*fw I*fw Total: 52 regular + 9 star = 61. Special production: none. Grand total: 61 different, 61 overall.