| 1986 | 1986 | 1990 | 1990 | 1994 |
 |
 |
 |
 |
 |
| Mayan Calendar | Mayan Calendar | |||
| SG | SG | SG 1075A | SG 1079 | SG 1156 |
| Scott 826 | Scott 831 | Scott 940 | Scott 944 | Scott 1024 |
| Stylized Owl | Stylized Owl | Spectacled Owl | Spectacled Owl | Spectacled Owl |