Many thanks for the positive feedback on this project.
And thanks Ian for the constructive comments, these are always much appreciated and help us improve our resources. So just to answer those...
The date range you mention, that appears in the breadcrumb trail at the top left of the page, has been updated. Well spotted! Previously it displayed the date range covering all editions of OS 6 Inch Eng and Wales mapping as it links back to the main introductory page for this entire series. To avoid confusion, it should now show the narrower date range specific to the 2nd Edition mapping that forms the seamless layer on display.
In terms of dates of specific sheets, we currently don't have a method that returns this in our Explore viewer. I can understand why this would be useful, particularly as the spread of dates for this layer is quite wide. We may try to add some dynamism that would display a date or date range that reflects just the area of mapping onscreen. At present, however, the best way to look up dates of specific sheets is to use our Find By Place viewer.
This basically works like a set of interactive map indexes. The boxes displayed are the sheetlines of each individual sheet that makes up the entire series. If you zoom in to the area you are interested in, then click on the map, the available sheets and their dates will be displayed as thumbnails on the right-hand-side. Clicking these thumbnails then opens a zoomable version of the individual sheet. Unlike the georeferenced layer, these images all include the marginalia so if you zoom in you can really explore all the various dates of survey, revision, publication, levelling etc.
Hope this helps. Again, thanks for the comments.
Use this board for general non-cycling-related chat, or to introduce yourself to the forum.
That is soooh cool - my employers will be after you! I am spending far too much time visiting friends' post codes and waggling the transparency slider to and fro'...