Issuer | Date | Desc | State | ||
- | ![]() |
United States | 1976 | sheet of 50 types | all added |
- | no image | United States | 1976 | empty sheet (#242) | incomplete |
X | ![]() |
United States | 1976 | Interphil sheets, sheet of 5 types | |
X | ![]() |
United States | 1976 | Interphil sheets, sheet of 5 types | |
X | ![]() |
United States | 1976 | Interphil sheets, sheet of 5 types | |
X | ![]() |
United States | 1976 | Interphil sheets, sheet of 5 types | |
- | no image | United States | 1976 | empty sheet (#247) | incomplete |
- | no image | United States | 1976 | empty sheet (#248) | incomplete |