Giles and oko:
I am somewhat conflicted by being awarded a point when oko most likely had the same information but just did not post it.
In my own defense, I can say I solved the puzzle in June, within days of the original posting, and had to wait until it moved up to the proper section. You can see this on my photo captions. I certainly have no objection to sharing the answer with oko but that is up to you, Giles.
Bill