> Among other things, Sebastian H. saw fit to write:
>
> >>>The important thing is to find if Escher's work is still under
> >>>copyright, or if it has passed into the public domain.
> >>
> I guess the exact copyright term depends on the country and on the date of
> creation. From Wikipedia:
>
> "The expiration time differs from country to country, but according to the
> Berne Convention the minimum time is the lifetime of the author plus 50
> years. In the Netherlands the term is 70 years after the death of the
> author."

According to http://www.mcescher.com/ the copyright to all of his images is
owned by the M.C.Escher Company B.V... the site appears to be quite helpful
if you want permission to reproduce his work, but I can't find anything
about derivative work. I guess the easiest way to find out is simply to ask
them...

Bill

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