Martinsyde F.4 Buzzard - Part three

The Martinsyde F.4 Buzzard was a British fighter designed in 1918 that was planned to enter service in the Great War. It was powered by a 300hp Hispano-Suiza 8Fb inline engine and was armed with two 0.303 Vickers machine guns placed in the front of the fuselage.
The type was expected to equip the French Aéronautique Militaire, the Royal Air Force and the United States Army Air Service with more than 1500 airplanes ordered.
They served with the Spanish Aeronáutica Militar from 1922 when  10 or 12 were bought. Eight of them were sent to the African city of Melilla, while the rest were used to train pilots in Los Alcázares aerodrome, in the south of Spain. Those serving in Melilla formed the "Escuadrilla Martinsyde" until they were replaced by the Nieuport-Delage NiD.29 in 1924. After being retired from service they were used as trainers serving with the training squadron in Cuatro Vientos, in Madrid. They served there until 1931 when the Spanish Republic was declared and, as they were really outdated, they passed on to the Republican Aeronáutica Naval were they served in the base of San Javier, at the southern of Spain until the beginning of the Spanish Civil War in 1936.
Apparently one-hundred of them also served with the Soviet Workers' and Peasants' Air Fleet in 1919 until some date in the mid-late 1920s when they were retired from service.
The type also served with the Uruguayan Escuela Militar de Aeronáutica (which was the name of the predecessor of the Uruguayan Air Force) in 1925.

Sources:
1. https://en.wikipedia.org/wiki/Martinsyde_Buzzard
2.http://www.ejercitodelaire.mde.es/stweb/ea/ficheros/pdf/229800650173ACD6C1257C99003F6930.pdf (translated)
3. Salamander Books - The Complete Book of Fighters.