2018, New York
2018, Vienna
2018, Geneva
2018, Full Sheet, New York
2022, Crypto, Definitive
2020, Definitive, Single, Vienna
2020, Definitive, Full Sheet, Vienna
2023, Definitive, Geneva, Single
2015, Definitive
2019, Definitive, New York
2023, Definitive, First Day Covers, Geneva
New York, Definitive, Single, 2021