The single arm signals were priced at 1/6, later upped on the back of the box to 2/2. (7½p and 11p respectively ...
Trip to Hersonissos
28th May 2014
Apparently it's a seaside resort on Crete and populated with scantily clad young ladies ...
... practising their parascending with a large plastic bag.
But fbb has never been there!