No document produced in Kenya in 1964 would have staple holes.
How do you know that ?
I am a person with vast experience in the so-called developing world. I have worked in the United States only four years out of my adult life.
I know the bureaucratic hapits and procedures for many countries and have observed how certain common features of office procedures were bequeathed by the Brits on their former colonies. They did NOT use staples. Staples were still rare and not used in Government offices until well into the 1990s to my personal knowledge, and I suspect still.
Please take my statement on this as determinative. I know what I am talking about, or I wouldn’t say it.