I was looking for a map of Europe prior to 1939 and this popped up in the results: http://www.probertencyclopaedia.com/photolib/maps/sww.htm I've searched previously for similar, but this is the first time this particular site has come up. Thought it might be useful for someone needing it for cross-reference to war diaries etc. Attached an example, can download higher resolution files for a small fee off the site.