Many thanks to you all. 
 
CC to me has always meant Creative Commons, I'm sorry for clouding the issue with such ambiguity! Thanks for the the link to the OGL article. If I'm correct: files with an OGL license can be used on Wikipedia and her sisters; Crown Copyright, in general, can not. Crown Copyright runs out after 50 years. 
 
I'll reword my request to Cadw. 
 
Have a great new year all of you!
 
Robin
 
 
 

> On 26 December 2013 at 23:04 Andy Mabbett <andy@pigsonthewing.org.uk> wrote:
>
>
> On 26 December 2013 22:24, Michael Peel <michael.peel@manchester.ac.uk> wrote:
> > I’ve started an enwp article on the OGL to better understand it, at:
> > https://en.wikipedia.org/wiki/Open_Government_Licence
> > Would anyone be interested in helping expand this?
>
> I think Jon Foster is your man for that; IIRC he helped to write the OGL.
>
>
> --
> Andy Mabbett
> @pigsonthewing
> http://pigsonthewing.org.uk
>
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