Mariner 2US
Mariner 2
United States
October 1, 1991Face value 29 cents Commemorative issue Space exploration
Space explorationUS
Space exploration
United States
October 1, 1991Face value 29 cents Commemorative issue Space exploration
Saturn & Voyager 2US
Saturn & Voyager 2
United States
October 1, 1991Face value 29 cents Commemorative issue Space exploration
Mars & Viking orbiterUS
Mars & Viking orbiter
United States
October 1, 1991Face value 29 cents Commemorative issue Space exploration
Moon - Lunar OrbiterUS
Moon - Lunar Orbiter
United StatesColor: multicoloured
October 1, 1991Face value 29 Cent
Jupiter & Pioneer 11US
Jupiter & Pioneer 11
United States
October 1, 1991Face value 29 cents Commemorative issue Space exploration
Moon & Lunar orbitUS
Moon & Lunar orbit
United States
October 1, 1991Face value 29 cents Commemorative issue Space exploration
Mercury & Mariner 10US
Mercury & Mariner 10
United States
October 1, 1991Face value 29 cents Commemorative issue Space exploration
Eagle & Olympic ringsUS
Eagle & Olympic rings
United States
September 29, 1991Face value $1.00
USPS Logo and Olympic RingsUS
USPS Logo and Olympic Rings
United StatesColor: multicoloured
September 29, 1991Face value $1.00
U.S. flagUS
U.S. flag
United States
September 27, 1991Face value 23 Cent
Presorted First Class - FlagUS
Presorted First Class - Flag
United StatesColor: multicoloured
September 27, 1991Face value 23 Cent
Unra
South Korea
September 26, 1991Face value ₩100
jing
South Korea
September 26, 1991Face value ₩100
Grind
South Korea
September 26, 1991Face value ₩100
Saeng-hwang
South Korea
September 26, 1991Face value ₩100
The Korean peninsula and the UN Mark
South Korea
September 18, 1991Face value ₩100
Black Heritage: Jan E. MatzeligerUS
Black Heritage: Jan E. Matzeliger
United States
September 15, 1991Face value 29 Cent
The 275th Anniversary of the Rhein-Ruhr Habour in DuisburgDE
The 275th Anniversary of the Rhein-Ruhr Habour in Duisburg
GermanyColor: multicoloured
September 12, 1991Face value 100 Pfennig
The 200th Anniversary of the Birth of Karl Theodor KörnerDE
The 200th Anniversary of the Birth of Karl Theodor Körner
GermanyColor: multicoloured
September 12, 1991Face value 60 Pfennig
PoetDE
Poet
GermanyColor: multicoloured
September 12, 1991Face value 100 Pfennig
The 100th Anniversary of the Birth of Hans Albers and ActorDE
The 100th Anniversary of the Birth of Hans Albers and Actor
GermanyColor: multicoloured
September 12, 1991Face value 100 Pfennig
The Stopped train and The Reunion of Dispersed Family
South Korea
September 11, 1991Face value ₩100
District of ColumbiaUS
District of Columbia
United StatesColor: multicoloured
September 7, 1991Face value 29 Cent