Monday Mystery: is this map real, or fake?

We were having lunch in Esquires Coffee Shop in Ambleside earlier, and were much intrigued by a large and apparently antique map painted onto the wall. We spent a happy half hour browsing it and pointing out local landmarks, old-fashioned place name spellings and the like, and much fun was had.

Until we started to spot the mistakes. Don’t get me wrong – I don’t expect antiquarian maps to be beacons of precision. Many of them were compiled by people with scant geographic knowledge of the...