Iranian stamps c. 1975; Mohammad Reza Pahlavi, Shah of Iran.

Iranian stamps c. 1975; Mohammad Reza Pahlavi, Shah of Iran.

South African stamp c. 1961-1963; Sekretarisvoel (Secretary Bird).

South African stamp c. 1961-1963; Sekretarisvoel (Secretary Bird).

South African stamp and aerogram imprint c. 1972-1974; Baobab tree and jet airplane.

South African stamp and aerogram imprint c. 1972-1974; Baobab tree and jet airplane.

South African stamp c. 1973; Tockus flavirostris (Hornbill). Art by Ernst de Jong.

South African stamp c. 1973; Tockus flavirostris (Hornbill). Art by Ernst de Jong.

South African stamp c. 1973; Zanclus cornutus (Moorish Idol). Art by Ernst de Jong.

South African stamp c. 1973; Zanclus cornutus (Moorish Idol). Art by Ernst de Jong.

South African stamp c. 1972-1974; Groot Constantina.

South African stamp c. 1972-1974; Groot Constantina.

South African stamp c. 1972-74; Protea Flower.

South African stamp c. 1972-74; Protea Flower.

South African stamp c. 1969; South African Games.

South African stamp c. 1969; South African Games.

South African stamp c. 1961-1963; Castle of Good Hope (Kasteel Kaapstad).

South African stamp c. 1961-1963; Castle of Good Hope (Kasteel Kaapstad).

French stamp c. 1969; Barrage de Vouglans. Engraved by Jacques Combet.

(Source: Flickr / alexjacque)

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