It was a scanned image of a "Certified Copy of Registration of Birth" dated in 1964 for a David Jeffrey Bomford on a genealogy website for the Bomford family. Except that David Jeffrey Bomford wasn't born in Kenya, he was born in South Australia. But what was even more interesting was certain other features of the document as compared to the Kenya certificate.
The names of the registrar and the district registrar were the SAME NAMES as given in the Kenya certificate save for the first initials, i.e. G.H. Lavender and J.H. Miller in the Bomford document versus E.H. Lavender and M.H. Miller in the Kenya document.
Also, the book number (44B) and page number (5733) were [...] exactly the same on both documents. [Link]