Sheets of Great Britain - Guernsey, 1990
| Issuer | Date | Desc | State | ||
| - |  |
Guernsey | 5/3/1990 | Penny Black 150th, sheet of 5 types | incomplete |
| - |  |
Guernsey | 8/24/1990 | empty sheet (#9426) | incomplete |
| - | no image | Guernsey | 10/16/1990 | empty sheet (#84022) | incomplete |