I found these images in a 2nd hand book, "Houses of Europe" (1960s) I got from Oxfam in Aberdeen recently. I was quite intruiged and would really love to know the story behind them. Not sure why they were stashed inside this book other than to keep them flat. They are definitely hand printed as there are two copies of the image of the boy, one slightly more overexposed.
Also, I'm not sure if the drawing was copied from a book. I can't quite place the time period either, the woman's clothes seem to be 20's style, but I'm not extremely familiar with historical fashion trends, more research is required!