New York, 2018
First Day Covers, New York, 2018
Vienna, 2018
First Day Covers, Vienna, 2018
Geneva, 2018
First Day Covers, Geneva
New York, Single, 2018
Full Sheet, New York, 2018
2015, Definitive
1992, Definitive, Full Sheet, New York, Single
1996, Definitive, Full Sheet, Geneva, Single
Commemorative, Flag, New York, Single, 2018
2007, Definitive, Full Sheet, New York, Single
Definitive, Geneva, New York, Vienna
1990, Definitive, Geneva
1991, Definitive, Full Sheet, Geneva, New York, Single
Commemorative, Flag, Full Sheet, New York, 2018
2001, Definitive, Full Sheet, New York, Single
