Sorry, there is no large version any more.
It really is a breton wave pattern, but I can't find where it was (sorry).
Surrealists are hard to search for it seems.
You should find animated gifs of his works (this was taken from a larger one) all over tinterwebs.
(
Lord Manley of Ven www.justgiving.com/manley - please?,
Fri 17 Mar 2006, 14:55,
archived)