National Library of Scotland
The National Library of Scotland (NLS) has a large collection of georeferenced Out-of-Copyright maps available online. Additionally it has other non georeferenced maps, principally for Scotland, which may be of interest.
NLS is keen to have OpenStreetMap make use of these georeferenced maps for deriving information and there is dialogue between NLS Senior Curator of Maps, Chris Fleet and a number of OSM mappers in Scotland, England and Ireland to continue to assist this process. NLS also gratefully acknowledge support from Wilbourn Associates of Sheffield who have funded map scanning and georeferencing work from 2011 (further information).
NLS have a Historic Maps api of maps of Great Britain from the 1920s to the 1940s (including 1:1 million to 1:63,360 map series) which means you can add map layers to your own slippy map instance or other services. Map tile delivery is currently free from the NLS servers, available under CC-BY-SA 3.0.
There are a number of Out of Copyright map overlay layers which are useful to OpenStreetMap mappers. All overlays currently available can be viewed on the NLS Explore Georeferenced Maps viewer. You can select OpenStreetMap Mapnik layer as the backcloth.
Using the NLS historical mapping for OSM editing
You can manually add the following TMS layers to JOSM TMS (via preferences). These will be available automatically in JOSM in due course. Addition to Potlatch is coming soon. When using these sources for OSM map editing its is requested that you add a "source=NLS Historic Maps" tag or similar.
- NLS - OS 6-inch County 1842-1882 - Max zoom 16 (This layer is Scotland only)
- NLS - OS 1:25,000 Provisional / First Series 1937-1961 - Max zoom 16. (Available for all of Great Britian).
- NLS - OS 1-inch 7th Series 1955-1961 - Max zoom 16. (Available for all of Great Britain)
- NLS - Bartholomew Quarter Inch to the mile (1: 253440) 1940
- NLS - British War Office One Inch to the mile (1:63,360) 1941-43 - (GSGS 4136)
Further information and usage of these Ireland map layers at: