| IDAHO | 50S | PARMA |
| INDIANA | 50I | KENTLAND MUNI |
| MICHIGAN | 50D | CRYSTAL FALLS IRON CO |
| MICHIGAN | 50G | CHESANING HOWARD NIXON MEML |
| NEBRASKA | 50K | PAWNEE CITY MUNI |
| OKLAHOMA | 501 | VICI MUNI |
| SOUTH CAROLINA | 50J | MONCKS CORNER BERKELEY CO |
| TENNESSEE | 50M | EAGLEVILLE PUCKETT GLIDERPORT |
| TEXAS | 50F | FORT WORTH BOURLAND FLD |
| TEXAS | 50R | LOCKHART MUNI |