The reverse design of the coin represents "a journey through some of the most iconic items of currency" issued in South Africa, and consists of the reverses of six South African coins:
- the 1923 threepence is from the time of South Africa’s first union,
- a R1 gold coin containing the image of a proudly South African springbok, first released in 1961,
- a 20 cent coin depicting the king protea - South Africa’s national flower,
- the smallest item of currency, a one-cent coin from 1990, featuring two sparrows,
- a commemorative R5 coin from 2008, issued for Nelson Mandela’s 90th birthday, and
- a 10 cent count from SA’s "fourth decimal series" which carries the image of a Cape honey bee (coins planned for a future release).
In a small circle at centre, the anniversary dates 1921 - 2021.
The initials of the die-sinker (engraver) MJS, for Marthinus J Scheepers, are in the right part of the central circle, to the right of and above the image of the Mandela R5. The right part of the central circle has a background of rays emanating from the centre.
Around above in the outer rim, the inscription SOUTH AFRICAN RESERVE BANK · 100 YEARS.
Below left, mostly in in the central circle, is the numeral of the value: 5; around below in the rim, the denomination RAND.
The abbreviation SARB, for South African Reserve Bank (the issuer of the coin) is inscribed three times below left on the rim, and six times below right. It is also repeated multiple times around the outer rim in microtext.
Inscription: SOUTH AFRICAN RESERVE BANK · 100 YEARS 1921 - 2021 5 RAND