Hello,
Currently onebay is a photo of a line up of three Nieuport aircraft with N.534 or N.536 a Nieuport 11 in between two two seaters at:
https://www.ebay.fr/itm/Des-avions-s...0AAOSwJt5foZz0
The same seller has a further two seater Nieuport 12 N.793 (?) at:
https://www.ebay.fr/itm/Un-avion-au-...gAAOSwN3xfoZzy
Regards,
Clint