South African Reserve Bank Act: Dimension, design for, and compilation of the 2016 Sterling silver crown and Tickey coin series (Gazette 40339, Notice R656)
https://www.polity.org.za/article/south-african-reserve-bank-act-dimension-design-for-and-compilation-of-the-2016-sterling-silver-crown-and-tickey-coin-series-gazette-40339-notice-r656-2016-10-18
18th October 2016
South African Reserve Bank Act: Dimension, design for, and compilation of the 2016 Sterling silver crown and Tickey coin series (Gazette 40339, Notice R656)