Cyrenaica 1927 Volta fine used.
SG40/42Fine used
France 1936 Ampere unmounted m...
SG543Unmounted mint, never hinged
Denmark 1947 Jacobsen unmounte...
SG356Unmounted mint, never hinged
Italy 1950 Righi unmounted mint.
SG759Unmounted mint, never hinged
Russia 1951 Russian Scientists...
SG1707/22Fine used
Brazil 1951 Geologist Derby un...
SG813Unmounted mint, never hinged
West Germany 1951 Rontgen unmo...
SG1073Unmounted mint, never hinged
West Germany 1951 Rontgen fine...
SG1073Fine used
West Germany 1952 Otto Gas Mot...
SG1076Fine used
West Germany 1953 Science Muse...
SG1089Unmounted mint, never hinged
West Germany 1953 Leibig fine ...
Michel 166Fine used
West Germany 1953 Liebig unmo...
SG1092Unmounted mint, never hinged
West Germany 1953 Liebig unmou...
West Germany 1953 Ehrlich and ...
SG1123Unmounted mint, never hinged
Austria 1954 von Welsbach unmo...
SG1264Unmounted mint, never hinged
Austria 1954 Rokitansky unmoun...
SG1254Unmounted mint, never hinged
Monaco 1955 Jules Verne fine l...
SG529/39Mounted mint
Greece 1955 Pythagorean Congre...
SG742/45Unmounted mint, never hinged
Russia 1956 Krylov fine used.
SG1929Fine used
Turkey 1959 Centenary of Turki...
SG1892/94Unmounted mint, never hinged
Norway 1960 Society of Science...
SG497/98Unmounted mint, never hinged
Norway 1962 Vilhelm Bjerknes u...
SG522/23Unmounted mint, never hinged
Netherlands Antilles 1963 Chem...
SG450Unmounted mint, never hinged
United Nations 1963 Scientific...
SGLU38/39Unmounted mint, never hinged
Japan 1963 Scientific Radio Co...
SG944Unmounted mint, never hinged
Brazil 1963 Dr Alvaro Alvim un...
SGLU38/39Fine used
Norway 1964 Law of Mass Action...
SG566/67Unmounted mint, never hinged
Brazil 1965 Vital Brazil unmou...
SG1114Unmounted mint, never hinged
Sharjah 1965 Science Transport...
SG107/26Unmounted mint, never hinged
France 1966 Academy of Science...
SG1721Unmounted mint, never hinged
Belgium 1966 European Chemical...
SG1974Unmounted mint, never hinged
Norway 1966 Eyde and Birkeland...
SG598/99Unmounted mint, never hinged
Australia 1968 International S...
SG426/27Unmounted mint, never hinged
Papua New Guinea 1970 42nd ANZ...
SG183/86Unmounted mint, never hinged
FTAI 1972 Famous Medical Scien...
SG582/83Mounted mint
Belgium 1972 Road Safety unmou...
SG2292Unmounted mint, never hinged
Brazil 1973 Scientific Researc...
SG1442/44Unmounted mint, never hinged
Brazil 1974 Marconi unmounted ...
SG1492Unmounted mint, never hinged
Russia 1975 Mints unmounted mint.
SG4471Unmounted mint, never hinged
Australia 1975 Scientific Deve...
SG596/99Unmounted mint, never hinged
Australia 1976 Scientific Rese...
SG622Unmounted mint, never hinged
1977 Centenary of Royal Insitu...
SG1029/32Unmounted mint, never hinged
Mauritania 1977 Nobel Prize Wi...
SG546Unmounted mint, never hinged
SG PP92Unmounted mint, never hinged
Venezuela 1978 Rafael Rangel u...
SG2395Unmounted mint, never hinged
Greenland 1978 Scientific Rese...
SG98Unmounted mint, never hinged
Italy 1979 Einstein unmounted ...
SG1595Unmounted mint, never hinged