This pilot is mentioned as claiming six victories in WW2 however sources vary.
Four confirmed and three probables:
https://www.passionair1940.fr/Armee%...EN-GC_II-5.htm
(CieldeGloire also notes four confirmed victories and three probables in 1939-40 but does not list any victories as a pilot with GCI/3. HMAW credits him with a Ju52 on 29.09.43).
Other sources state 4 victories in Vichy Air Force!
http://www.igleize.fr/aces/ww2vic.htm
A claim confirmed by LPCF which lists one claim in 1940, four claims in November 1942 and a sixth in September 1943.
....also one victory in 1940, six victories overall...
https://www.bibert.fr/Joseph_Bibert_.../Victoires.htm
Was he an ace? Did he make a claim in 1943? Two pilots named Jean Dugoujon who served in GCII/5?
regards
Keith