1.Nieuport 27, N5690 flown by Sgt. Marcel Gasser of Escadrille N.87 Aviation Militaire. France, Spring 1918. 2.Nieuport 27, B3631 flown by Capt. H. J. Hamilton of No.29 Squadron Royal Flying Corps. Proven, France, December 1917. 3.Nieuport 27,(serial unknown) of the No. 1 Squadron Royal Flying Corps. Baileul, France, December 1917. 4.Nieuport 27, N5459 flown by Lt. Jacques Michael Swaab (DSC) of 22nd Aero Squadron of American Expedition Force in Europe. Issoudun, France, August 1918. 5.Nieuport 27, unknown Aero Training Squadron of American Expedition Force in Europe. France, mid-1918. 6.Nieuport 27, N5532 flown by Commander of Escadrille N.99 Aviation Militaire – Capt. Roger de Richemont, 1917. Note!! "4.Nieuport 27, N5459 flown by Lt. Jacques Michael Swaab (DSC) of 22nd Aero Squadron of American Expedition Force in Europe. Issoudun, France, August 1918." Note: the 22nd Aero was not at Issoudon 3rd AIC. It was a frontline unit. Lt. Swaab was under going training at Issoudon and not yet assigned to the 22nd Aero. The large numbers like “435″ were on the unarmed trainers the students flew regularly. "5.Nieuport 27, unknown Aero Training Squadron of American Expedition Force in Europe. France, mid-1918." The skull-n-bones was the insignia of the 31st Aero at Issoudon but was only on the training a/c assigned to the instructors. (The students took their graduation photos in these machines.)