Italy 1949 Volta unmounted mint.
SG737/38Unmounted mint, never hinged
Canada 1950 50c Oil Wells in A...
SG431Mounted mint
Algeria 1954 River Agrioun Hyd...
SG333Mounted mint
Bolivia 1955 Petroleum air set...
SG613/17Unmounted mint, never hinged
West Germany 1955 von Miller u...
SG1135Unmounted mint, never hinged
SG613/17Mounted mint
Austria 1956 World Power Confe...
SG1283Unmounted mint, never hinged
Russia 1956 Atomic Power Stati...
SG1934/36Fine used
Lebanon 1957-60 airmail set li...
SG592/600Mounted mint
Brazil 1958 Salto Grande Hydro...
SG979Unmounted mint, never hinged
Brazil 1958 State Petroleum La...
SG996Unmounted mint, never hinged
SG979Mounted mint
SG996Mounted mint
France 1959 French Technical A...
SG1423/26Unmounted mint, never hinged
Egypt 1959 First Arab Petroleu...
SG594Unmounted mint, never hinged
Syria 1959 Oil Refinery unmoun...
SG702Unmounted mint, never hinged
Venezuela 1960 Oil Industry se...
SG1636/41Unmounted mint, never hinged
Yugoslavia 1960 Nuclear Energy...
SG966/68Unmounted mint, never hinged
Venezuela 1960 Oil Industry re...
SG1636/38Unmounted mint, never hinged
Yugoslavia 1961 Int Nuclear El...
SG982Unmounted mint, never hinged
Brazil 1961 Hydro-Electric Sta...
SG1044Unmounted mint, never hinged
Saudi Arabia 1961-62 Gas Oil P...
SG396/409Mounted mint
SG396/409Unmounted mint, never hinged
Belgium 1961 Euratom unmounted...
SG1795/97Unmounted mint, never hinged
Iran 1962 Petroleum Symposium ...
SG1269/70First Day Cover
South Korea 1962 First Korean ...
SG423Unmounted mint, never hinged
Brazil 1963 Nuclear Energy Com...
SG1084Unmounted mint, never hinged
Mauritania 1963 Mining Develop...
SG163/64Unmounted mint, never hinged
Brazil 1963 Petrobras unmounte...
SG1088Unmounted mint, never hinged
Saudi Arabia 1963-64 p Gas Oi...
SG487Mounted mint
Saudi Arabia 1963-64 1p Gas Oi...
SG489Mounted mint
Saudi Arabia 1963-64 ½p Wadi ...
SG488Unmounted mint, never hinged
SG489Unmounted mint, never hinged
Saudi Arabia 1963-64 ½p Gas O...
SG487Unmounted mint, never hinged
Saudi Arabia 1964-72 3p Gas Oi...
SG531Unmounted mint, never hinged
Saudi Arabia 1964-72 16p Gas O...
SG544Unmounted mint, never hinged
Saudi Arabia 1964-72 13p Gas O...
SG541Mounted mint
Algeria 1964 Inauguration of N...
SG439Unmounted mint, never hinged
Saudi Arabia 1964-72 27p Gas O...
SG552Mounted mint
Saudi Arabia 1964-72 26p Gas O...
SG551Mounted mint
Saudi Arabia 1964-72 17p Gas O...
SG545Unmounted mint, never hinged
Saudi Arabia 1964-72 19p Gas O...
SG547Unmounted mint, never hinged
Saudi Arabia 1964-72 33p Gas O...
SG554Unmounted mint, never hinged
Saudi Arabia 1964-72 31p Gas O...
SG553Mounted mint
Saudi Arabia 1964-72 1p Gas Oi...
SG755Unmounted mint, never hinged
Saudi Arabia 1964-72 18p Gas O...
SG546Mounted mint
Saudi Arabia 1964-72 4p Gas Oi...
SG532Unmounted mint, never hinged
Saudi Arabia 1964-72 24p Gas O...
SG550Unmounted mint, never hinged