One seems to be 8/7/1961 and the other 8/8/1961 which if they were written the British way would be 8th July 1961 and the other 8th August 1961. The day is placed before the month in the British system and that is reversed in the American and it would appear that this certificate follows the American practice, which I would have thought unlikely in Africa at that time.
If it was using the British dating system it would be a fraud as 8/7/1961 would be 8th July 1961 which would be before his birth on the 4th of August 1961.