It seems that the article
https://en.numista.com/catalogue/pieces2864.html
missed a line in year distribution:
1958 KHN
The existence of the coin is confirmed in SCWC as well as it can be found at on-line auctions such as
https://www.delcampe.net/en_GB/collectables/coins-banknotes/coins-east-africa/british-colony/great-britain-east-africa-50-cents-1958khn-uncommon-low-start-no-reserve-412563560.html
So written
1958 H 2,600,000 Heaton Mint
1960 4,000,000
should be
1958 H 2,600,000 Heaton Mint
1958 KHN
1960 4,000,000
Please ignore the percentages which by mistake are named as 'frequency', of course I know that the term 'frequency' has another meaning.
