CV was for Romania. Also painted on the rear fuselage is number 51 - likely the CoR number. According to French publicist Michel Barrière, this aircraft used to be F-AJHZ of Air Service which took Prince Carol back to Romania in June 1930 to ascend the throne in a coup d'état, unknown to its French pilot. Certainly CV-RAC was put on display in 1932 as 'the aircraft that brought King Carol back'. Other sources give c/n 7122/12, ex F-AIZR. Photo from: Narodowe Archiwum Cyfrowe