Name | Issues/Designs | |||
barograph | — | — | d - barograph & WMO emblem 1964 | |
Fang bellows | — | — | d - Fang bellows 1982 | |
microscope | — | — | d - Louis Pasteur at microscope 1972 | |
mvet | — | — | d - mvet 1969 | |
oil derrick | — | — | d - oil derrick 1980 | |
Ondoumbo reliquary | — | — | d - Ondoumbo reliquary 1982 | |
stamp
subtype of manufacture |
— | — | d - stamp & Boeing 747 1984 | |
wing design by da Vinci | — | — | d - wing desi.. da Vinci 1970 |