2018, New York
2018, Vienna
2018, Geneva
2018, Full Sheet, New York
2019, Definitive, New York
2021, Definitive, Full Sheet, New York
Definitive
2020, Definitive, Single, Vienna
2022, Definitive, Single, Vienna
2020, Definitive, Full Sheet, Geneva
2011, Definitive, Full Sheet, Geneva, New York, Single, Vienna
2023, Definitive, First Day Covers, Geneva
New York, Definitive, Single, 2021