Portrait of Nicolaas Johannes Diederichs facing left, country name in Afrikaans and English above, date below.

Nicolaas Johannes "Nico" Diederichs (1903-1978) served as the third State President of South Africa, a position that he held from 1975 until his death in August 1978.

Engraver: Lourens De Lange

Depicts two Cape sparrows perched on branch below denomination.

The Cape sparrow or mossie (Passer melanurus) is a bird of the sparrow family Passeridae found in southern Africa. A medium-sized sparrow at 14–16 centimetres (5.5–6.3 in), it has distinctive plumage including large pale head stripes. Both sexes are mostly coloured grey, brown, and chestnut, and the male has some black and white markings on its head and neck. It inhabits semi-arid savannah, cultivated areas, and towns, and ranges from the central coast of Angola to eastern South Africa and Swaziland.

Engraver: Tommy Sasseen