Alex, have you seen this attachment. (If it works)
The two look remarkably similar . . . which, of course, is what you'd expect for two maps of the same place, but the similarity leads me to conclude that the second version is based on the first, as langcliffe remarks.
Hi Alex, have you not got a copy of NC 2, which contains a line survey of the area, which may be better than nothing?
Messaged you Alex
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