In the 1940s, through to at least the end of the 50s Macmillan produced brilliant artwork for schools. They were mini-posters, maybe 20" x 16" and they came in sets of at least 50 at a time. There were sets for the History Class, sets for the Geography Class and the Nature Class and nearly all of them have a real period feel. There is now quite a market in them as examples of vintage graphics. I have never seen, however, until now, a poster for the Drawing Class and, if this is one of a set, I would love to see the rest. Amazing colours and almost (almost) Art Deco in style still.