| Issuer | Date | Desc | State | ||
| - | no image | Liechtenstein | 6/7/2021 | 100th Anniversary of PEN International, sheet of 3 types | |
| - | no image | Liechtenstein | 9/6/2021 | Joint Issue with Ukraine, sheet of 2 types | |
| - | no image | Liechtenstein | 9/6/2021 | 700th Anniversary of the Death of Dante Alighieri, sheet of 2 types | |
| - | no image | Liechtenstein | 9/6/2021 | Blockchain Technology from the Principality of Liechtenstein, sheet of 1 type |