Could be their CLIO, 2312gt, completed 6-1922
1924 BRIERE - wrecked near Pontusval, NE Brest 16.11.30 [Rouen-Casablanca, cattle & general]
with photos at:
http://www.archeosousmarine.net/bdd/fic ... p?id=13680Otherwise, near sister CYBELE, 2382gt, completed 10-1922
1924 CRUCY - 1931 PENTHIEVRE - shelled (British Army) near Calais 2.3.43
Owners actually rendered Cie Auxiliaire de Nav (extra i in Auxiliaire). If indeed one of these might be quite a rare photo given both were in the fleet for no more than two years.
Ron