It's a Lafay

  SIR - I have to thank retired aviation book dealer Brian Cocks for identifying the aeroplane featured in my Lost & Found piece in TAH31. It was not a Paul Schmitt aeroplane at all, but an obscure one-off Brazilian machine.
  On the day that the Armistice put an end to the Great War, November 11, 1918, the first members of a French Military Mission engaged to organise the Brazilian Army's Aviation School arrived in Rio de Janeiro. Among them was Capt Etienne Lafay, who was to build two aircraft in Brazil. The first was a biplane similar to the French Caudron G.III, powered by an 80 h.p. Gnome rotary engine, and this is the machine featured in the Lost & Found picture.
  Officially named Rio de Janeiro, it was completed in April 1920 and first flew at the Military Aviation School at Campo dos Afonsos on May 15. Three days later it was announced that the aircraft had reached an altitude of 2,200m (7,200ft) in 25min. On August 8 Lafay flew the Rio de Janeiro from Rio to Sao Paulo, returning the next day, and on August 29 he broke the South American endurance record. The aircraft was flown until the end of 1923.
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Philip Jarrett Dorking, Surrey