This special edition set contains a R2 sterling-silver Crown featuring the anatomy of the human eye, together with a 1oz fine-silver Krugerrand with the human eye as a privy mark.
The 2019 "South African Inventions" theme features the history, invention and development of polymer putty as well as its journey to the moon. Invented by South African George Montague (Monty) Pratley, the world famous Pratley Putty was developed in the 1960’s as an insulator and an adhesive agent for fixing brass terminals which were located inside cast iron cable junction boxes. |