Not a full guide documentation to the said cameras, more like a copy of a page from such a book. Yes, I know, not enough for the insatiable curiosity, but at least you can have a glimpse into an age when these ultraminiature cameras were all the rage.
Organized by camera, price back then, lens and shutter, what film/cost, and the distributor. Quite a nice piece of information, for those who are interested. I do hope this will be of help to someone out there!