I reckon caterham has provided all the info any expert can...until we see pictures

Like East Hill says: the paint jobs done by Carlo Dossena (varnish by dossena carlo) were typically very stylish and elaborate, with multiple color airbrushed and swirly marblized effects prevalent. Search the thread on "Titan of Switzerland" frames to see a lot of pics of his paint. I'm not sure if I spelled Carlo's name correctly, but you might get the title of this one right: GUERCIOTTI (helps others to search for it later)