I see two different coin
I feel they are people playing bet at that particular time.
Once upon a time they was a man I'm Congo who traveled round the country insearch of different type of coin,he traveled to Zambia to find some coin he saw some and he used to buy with a lot of money that your country is using and almost all those countries he is going he will buy but know one never ask him what did you want to use the coin to with it no one ever ask.
I visited 16 different countries in Africa but the seventeen country is Nigeria the home of talented as as I landed at Lagos in mainland and I started advertising about if anyone have any type of coin he should it I will buy, a man called him and said young I have many coin but before that I want to have a word with you and he said no problem and he meet this young man and he ask him " what are you producing with this coin that you are looking for and you leave your country to Nigeria and this man refuse to tell him and the man said if you didn't tell I will instruct every one to take his coin back home and he explain to the man and said we yes it in production of bomb and the man he want to be part of the business and this man from Congo said Nigeria are too stubborn and the man was involved in the business and the man from Congo was definitely angry but he has no option and they continue buying the coin with the Congo man.