Sheets of Monaco, 1988
| Issuer | Date | Desc | State | ||
| - |  |
Monaco | 2/15/1988 | Winter Olympics 1988, sheet of 2 types | |
| - |  |
Monaco | 4/21/1988 | Europa 1988, sheet of 2 types | all added |
| - |  |
Monaco | 9/8/1988 | Olympics 1988, sheet of 4 types | |
| - |  |
Monaco | 10/20/1988 | Four Seasons of the Olive Tree, sheet of 4 types |