Japan 1977 Critical Mass Joyo ...
SG1459Unmounted mint, never hinged
Venezuela 1977 OPEC unmounted ...
SG2366Unmounted mint, never hinged
Egypt 1977 National Petroleum ...
SG1332Unmounted mint, never hinged
Turkey 1977 Energy Conference ...
SG2593/94Fine used
SG2593/94Unmounted mint, never hinged
Mexico 1978 40th Anniversary o...
SG1426/28Unmounted mint, never hinged
Venezuela 1978 Venezuelan Oil ...
SG2396/97Unmounted mint, never hinged
1978 Energy Resources Presenta...
SG PP99Unmounted mint, never hinged
Uruguay 1979 Department of Dur...
SG1721Unmounted mint, never hinged
Mexico 1979-88 1.90p Petroleum...
SG1484Unmounted mint, never hinged
Niger 1979 Solar Energy unmoun...
SG757/58Unmounted mint, never hinged
Mexico 1979 Centenary of Elect...
SG1531Unmounted mint, never hinged
Costa Rica 1979 Electricity In...
SG1136/37Unmounted mint, never hinged
Dominican Republic 1979 Centen...
SG1374/75Unmounted mint, never hinged
Syria 1979 Power Station unmou...
Algeria 1980 Organisation of P...
SG772/73Unmounted mint, never hinged
Uruguay 1980 Centenary of Elec...
SG1736Unmounted mint, never hinged
Brazil 1980 Energy Conservatio...
SG1806/09Unmounted mint, never hinged
Brazil 1980 Coal Industry unmo...
SG1810Unmounted mint, never hinged
Uruguay 1981 Atomic Energy unm...
SG1784Unmounted mint, never hinged
Uruguay 1981 Combustible Fuels...
SG1789Unmounted mint, never hinged
Uruguay 1981 Palmar Central Hy...
SG1795Unmounted mint, never hinged
Israel 1981 Energy Conservatio...
SG807/08Unmounted mint, never hinged
Nauru 1982 Ocean Thermal Energ...
SG263/66Unmounted mint, never hinged
Brazil 1982 Oil Rig Workers un...
SG1950Unmounted mint, never hinged
Saudi Arabia 1982-87 20h Oil R...
SG 1309Unmounted mint, never hinged
Turkey 1982 Energy Conservatio...
SG2768Fine used
SG2768Unmounted mint, never hinged
Albania 1983 Energy Production...
SG2165/66Unmounted mint, never hinged
Niger 1983 Solar Energy in the...
SG966/67Unmounted mint, never hinged
Saudi Arabia 1984 Al-Eyenah So...
SG1388Unmounted mint, never hinged
Kenya 1985 Energy Conservation...
SG339/42Unmounted mint, never hinged
Venezuela 1985 National Petroc...
SG2555aUnmounted mint, never hinged
Algeria 1985 OPEC unmounted mint.
SG904Unmounted mint, never hinged
Bolivia 1986 National Petroleu...
SG1129Unmounted mint, never hinged
Egypt 1986 Centenary of First ...
SG1645Unmounted mint, never hinged
Russia 1987 30th Anniv of Int ...
SG5785Unmounted mint, never hinged
Mexico 1987 50th Anniversary o...
SG1844Unmounted mint, never hinged
Brazil 1988 Energy Conservatio...
SG2304/04Unmounted mint, never hinged
Brunei 1989 Oil and Gas Indust...
SG463/67Unmounted mint, never hinged
Algeria 1990 30th Anniversary ...
SG1043Unmounted mint, never hinged
Algeria 1990 Rural Electrifica...
SG1039Unmounted mint, never hinged
Algeria 1990 Rational Use of E...
SG1032Unmounted mint, never hinged
Turkey 1991 South-eastern Anat...
SG3126aUnmounted mint, never hinged
Honduras 1992 General Francisc...
SG1182/83Unmounted mint, never hinged
Brazil 1994 Petrobas State Oil...
SG2665Unmounted mint, never hinged
Uruguay 1994 Electricity unmou...
SG2159Unmounted mint, never hinged
Azerbaijan 1994 Nobel Partners...
SG151Unmounted mint, never hinged