Six letters?! Wouldn't be Carrosserie Borree then would it? I have this one form two seperate and dependable Panhard sources, and both list it as Bore (with the accent!), as Bore specialised in the unusual doors that this car had, which opened in two sections; the top part folding up gullwing-style, with the main door section opening outwards.
If not Bore, then I'm not sure who constructed it for M. Lacapitane, so it can be opened back up to all-comers.