Hi Tom
Many years ago I made a production list of all Buffalos built, and when I bought Le Brewster Buffalo (LELA Presse), I was surprised how accurate it was.
If you are interested in the Buffalo I can recommend the book, if only just for the photos and list (mine was minute compared to this one...

).
After the attack on May 10, 1940 on Holland, Belgium and France the Belgian order went over to France and after their fall to Britain. The Belgian aircraft were then numbered in a French system starting with No 2 as No 1 was already on the way to Bordeaux. Brewsters c/n 57-60 then became French AF No 2 to 5, all of which ended up at Martinique, where they rotted away. Brewsters with c/n 63-64 never made it to Martinique but were transferred to Britain instead as AS410 and AS411. However two further Brewsters c/n 63-64 Adl'A No 8-9 was on the fateful vessel which offloaded its material at Martinique and also rotted away on that Island.
The list is very complete and I believe the French records from Martinique are fully plausible, so I have no reason to think this production list is wrong and any reports of more than one Buffalo at Bordeaux has to be substantiated by more facts....
Cheers
Stig