2 – Italy – 2021 – 150th Anniversary of the institution of Rome Capital of Italy
2 – Germany – 2021 – Bundesländer series – Saxony-Anhalt – J
2 – Germany – 2021 – Bundesländer series – Saxony-Anhalt – G
2 – Germany – 2021 – Bundesländer series – Saxony-Anhalt – F
2 – Germany – 2021 – Bundesländer series – Saxony-Anhalt – D
2 – Germany – 2021 – Bundesländer series – Saxony-Anhalt – A
2 – Luxembourg – 2021 – The 40th anniversary of the marriage of Grand Duke Henri
2 – Spain – 2021 – UNESCO – Toledo
2 – France – 2021 – UNICEF
2 – San Marino – 2021 – The 450th anniversary of the birth of Caravaggio
