| Catalog Number | Description | Denomination | Color | Date Issued | Perforation | Num Produced | Series |
|---|---|---|---|---|---|---|---|
| 1966 | Indiana | 20c | multi. | 4/14/1982 | 10½ x 11¼ | ||
| 1966A | Indiana | 20c | multi. | 4/14/1982 | 11¼ x 11 | ||
| 1967 | Iowa | 20c | multi. | 4/14/1982 | 10½x11 | ||
| 1967A | Iowa | 20c | multi. | 4/14/1982 | 11¼ x 11 | ||
| 1968 | Kansas | 20c | multi. | 4/14/1982 | 10½ x 11¼ | ||
| 1968A | Kansas | 20c | multi | 4/14/1982 | 11¼ x 11 | ||
| 1969 | Kentucky | 20c | multi. | 4/14/1982 | 10½ x 11¼ | ||
| 1969A | Kentucky | 20c | multi | 4/14/1982 | 11¼ x 11 | ||
| 1970 | Louisiana | 20c | multi. | 4/14/1982 | 10½ x 11¼ | ||
| 1970A | Louisiana | 20c | multi. | 4/14/1982 | 11¼ x 11 | ||
| 1971 | Maine | 20c | multi. | 4/14/1982 | 10½x11 | ||
| 1971A | Maine | 20c | multi. | 4/14/1982 | 11¼ x 11 | ||
| 1972 | Maryland | 20c | multi. | 4/14/1982 | 10½x11 | ||
| 1972A | Maryland | 20c | multi. | 4/14/1982 | 11¼ x 11 | ||
| 1973 | Massachusetts | 20c | multi. | 4/14/1982 | 10½ x 11¼ | ||
| 1973A | Massachusetts | 20c | multi. | 4/14/1982 | 11¼ x 11 | ||
| 1974 | Michigan | 20c | multi. | 4/14/1982 | 10½x11 | ||
| 1974A | Michigan | 20c | multi. | 4/14/1982 | 11¼ x 11 | ||
| 1975 | Minnesota | 20c | multi. | 4/14/1982 | 10½ x 11¼ | ||
| 1975A | Minnesota | 20c | multi | 4/14/1982 | 11¼ x 11 |