| 1989 | 1991 | 1992 | 2001 | 2003 |
 |
 |
 |
 |
 |
| Close Up | ||||
| SG 980 | SG MS1054 | SG 1081 | SG 1428 | SG 1542 |
| Scott B266 | Scott B288a | Scott B292 | Scott 946 | Scott 1013d |
| MS | MS | |||
| Barn Owl | Stylised Owl | Stylised Owl | Unidentified Owl | Stylised Owl |
