Author Topic: What do these lines on OS map mean?  (Read 1036 times)

Offline Chapuys

  • RootsChat Extra
  • **
  • Posts: 42
  • Census information Crown Copyright, from www.nationalarchives.gov.uk
    • View Profile
Re: What do these lines on OS map mean?
« Reply #9 on: Thursday 29 December 16 10:35 GMT (UK) »
Here is a picture of a benchmark on a wall (from Wikipedia). Same symbol as the map.

More information at: https://www.ordnancesurvey.co.uk/benchmarks/