This is the figure - still available from Tradition, number KD5402. He was marked as Billy Pesa in the catalogue when I bought him as a casting around six or so years ago. Interestingly, he isn't now!
I think, from memory, the sculptor was Alan Caton. If you go on to the web site I listed in my last post, the pictures of Billy shown there looks like it could have been the source from which the sculptor took his inspiration - and much of the detail. Not sure if this helps the debate over who Billy was - but at least shows that is who he "claimed" to be. If you read the French site - he apparently did make the claim!
Another point to make is - that I'm nowhere near as good a painter as your Dad! Note: this might be a good figure to add to your growing collection though?
johnnybach