>Is there a useful distinction between the two 1:25000 layers? > >-- >Andrew >
At face value, no. They both show map sheets from the Ordnance Survey 1:25k series (although the dates may differ slightly). However if we look at the hosting of these tiles we find that one of these is provided by the National Library of Scotland, the other is a result of OSM community members scanning and geo-rectifying maps that they own. The NLS version is complete so you may suggest that we drop the community version. I would caution against this as it may put other community members of buying, scanning and rectifying other useful historic map series. It would be nice to see the 1:25k tiles on ooc.openstreetmap.org and faffy.openstreetmap.org combined in some way. Regards, Rob
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