Old 1900 Paris Map on 20×200
When I released Old Maps of Paris and Old Maps of New York projects my ambition was that they would come in useful and educate. I am pleased to see that 20×200 are selling one of the Paris maps from oldmapsofparis.com to raise money for their Artist Fund (that helps promote artists worldwide). Although I have done some cleanup and processing on these maps, as the source documents are out of copyright, I released them under the public domain status I believe they should hold.
The 1920 Paris map was also recently used by Macmillan Education Australia.