| 2001 | 2011 | 2011 |
 |
 |
 |
| SG 2108 | SG | SG 2825 |
| Scott 1070g | Scott 1385 | Scott 1386b |
| Sheet | Sheet | Sheet |
| The Happy Owl on selvedge | Barn Owl | Eagle Owl |
| 2013 | 2013 |
 |
 |
| SG | SG |
| Scott | Scott |
| Sheet | Sheet |
| Eagle Owl | Little Owl |
| 2013 | 2014 | 2014 |
 |
 |
 |
| SG | SG | SG |
| Scott | Scott | Scott |
| Sheet | Sheet-1 Sheet-2 Sheet-3 | Sheet-1 Sheet-2 Sheet-3 |
| Tawny Owl | Stylized Owl | Stylized Owl |
