Hello,
Currently on ebay is a photo of Nieuport 10 N.446 at:
https://www.ebay.it/itm/Vue-aerienne...UAAOSwqwNew3J5
The site at :
http://albindenis.free.fr/Site_escad...e_Nieuport.htm
mentions a photo of this aircraft, so I hope its not the same. Speaking of this very helpful site it has the notation N 31 - N 3, Would I be correct in assuming that the writer simply means the plane moved fron N31 to N3? An obvious question I suspect but best to be clear.
Regards,
Clint