| 1968 | 1968 | 1968 |
|
|
 |
 |
| Mayan Calendar | Mayan Calendar | Mayan Calendar |
| SG 277 | SG 278 | SG 279 |
| Scott 237 | Scott 238 | Scott 239 |
| Sheet | Sheet | Sheet |
| Stylized Owl | Stylized Owl | Stylized Owl |
| 1968 | 1968 | 1968 |
 |
 |
 |
| Mayan Calendar | Mayan Calendar | Mayan Calendar |
| SG 280 | SG 281 | SG 282 |
| Scott 240 | Scott 241 | Scott 242 |
| Sheet | Sheet | Sheet |
| Stylized Owl | Stylized Owl | Stylized Owl |
| 1992 | 2001 |
|
|
 |
| SG 1286 | SG 1444 |
| Scott 1102 | Scott 1240 |
| Sheet | |
| Eagle Owl | Eagle Owl |
| 1973 |
 |
| Close Up |
| SG MS465 |
| Scott B34 |
| Stylised Owl |
