Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
Yes indeed Mike the splendid Nieuport-Delage NiD622 of the Aeronavale.....your turn now pleaseWell, nobody else biting, Carlo, so I'll venture this is a Nieuport Ni.D 622 C1 of the Marine. Escadrille 3C1. Pleasing design, although a little cluttered.
Mike. The gentlemen are Edmund Rumpler and Ernst Udet. The craft is Rumpler D I 1589/18 (D-289) at a meeting in Ausgburg on 5th October 1919 where she presumably crashed.

