This work is an Ordnance Survey map over 50 years old, which is covered by Crown Copyright which in this case expires 50 years after publication. Ordnance Survey does however ask that they be credited and that the date of publication be given.
Any ancillary rights gained through the creation of the electronic version are granted as freely usable under any circumstances.
Under the UK Copyright, Designs and Patents Act 1988, ‘Crown’ copyright exists for a period of 50 years from the end of the year in which the work was first published. This means that any OS mapping which was created prior to 1 April 2015 will be protected by Crown copyright for a period of 50 years from its first publication. Accordingly, if an OS map was first published over 50 years ago it can be copied or otherwise used without a licence from OS.
Captions
Map of the Cambrian slate quarry Glyn Ceiriog prior to 1913