| Issuer | Date | Desc | State | ||
| - | no image | Czech Republic | 3/11/2020 | Architecture of Hradec Kralove City and Josef Gocar, 1880-1945, sheet of 2 types | |
| - | no image | Czech Republic | 6/17/2020 | Josef Liesler, sheet of 4, 3 types | |
| - | no image | Czech Republic | 9/9/2020 | Space Architecture, sheet of 1 type | all added |
| - | no image | Czech Republic | 10/7/2020 | Czech Actors, sheet of 2 types | |
| - | no image | Czech Republic | 11/25/2020 | Prague Motifs, sheet of 2 types |