This time, another 40.000 maps have been published by David Rumsey and are available for online georeferencing.
Try it yourself at http://rumsey.georeferencer.com/random
New features of Georeferencer (coming up with this project):
- Side-by-side view to compare the new and up-to date maps or any two old maps next to each other
- WMTS tiles all georeferenced maps can be loaded in mashups
Video tutorial is available at: