Last week, a report by Andrea Wallace, 'A Culture of Copyright: A
scoping study on open access to digital cultural heritage collections
in the UK', was published, examining UK GLAMs' claims of copyright on
reproductions of 2D works of art whose copyright has expired.
It's really well researched and written, and makes points which align
well with the Wikimedia movement's views on such Public Domain works.
The report (openly licensed and so naturally free to read) is here:
and there's a good blog post about it here: