What kind of paper is Kenyan on and when did they adopt it?
With the odd angle of the Taitz image, I wouldn't hazard a guess. The Bomford image is flat on, though, and its ratio (along with some assumptions about cut-off) is perhaps guessable.
I also looked at the other images in the Bomford directory, and they are mostly consistent both with internal and external timestamps on time, and from what spot checking I have done, they are consistent with a single scanning session on 2007-06-05 at 150x150 dpi, with the files uploaded almost immediately.