Hello Buckeye,
Thanks for the two excellent links. A copy of Wings of Serbia on my Christmas present list, I'm thinking. It looks outstanding.The
http://albindenis.free.fr site was also helpful. I'm thinking ,looking at the underwing roundels, that the aircraft on the ebay link is probably from a Franco-Serbian Unit. Pity that its not possible to see the tailplane as the large S in Spad would also have helped to confirm.
Thanks once again.
Regards,
Clint