A beautiful little site which includes lots of information from someone who worked in the field, and collects small vintage posters from ebay, etc.
Travel and Vintage Posters (SALE 5874) You can register to purchase these posters online until today (8th September). I, personally, don't have the money for such things, but I'm sure there are others who have! there's a couple of wartime posters in there, notably a couple of Fougasse and H.M. Bateman designs. Thanks for the notification from IanVisits