QATAR (2022). We are proud of our frontline heroes - Covid-19. Cover to Europe (2023)

(25.07.2022) - We are proud of our frontline heroes - Covid-19. Mint souvenir sheet.

(25.07.2022) - We are proud of our frontline heroes - Covid-19. First day cover with the souvenir sheet, special postmark type 2 (different from the one on the official first day cover).

(25.07.2022) - We are proud of our frontline heroes - Covid-19. Illustrated first day cover with the souvenir sheet.

(25.07.2022) - We are proud of our frontline heroes - Covid-19. Cover to Europe with the two stamps of the souvenir sheet plus definitive stamps, Doha GPO date postmark - 2024 (no first day), new postage rates. The rest of the mini sheet is delivered along with the cover.