From Rumsey's site: http://networkedblogs.com/fBgu5

1,634  new maps and images have been added to the David Rumsey Map Collection, bringing the online collection to over 26,000 maps and images. Included in this addition are five issues of Colton's General Atlas of the World dated from 1865 to 1886. Also two editions of Schonberg's Standard Atlas of the World, 1865 and 1867. Sheets from two national surveys: six composite images of the entire Wheeler Survey of the U.S. West, 1876, and the first 338 sheets of the massive 19th century survey of Germany, Karte des Deutschen Reiches, 1893 (the remaining 336 sheets will follow in the next update). Added are elegant maps from the Atlante Geographico de Agostini, 1952, and a complete set of all the Shell Oil Company Automobile Road maps of North America, 1956. All titles may be found by clicking on the View links or images below. Or click here to view all 1,634 new maps and images.