Potez 630
Correct designation 632 B2, Swiss Code "B-1"

This is a Potez 632 B2, coded "B-1" as used by the Swiss Air Force (Flugwaffe) during 2nd World War. According to the documents this was a two seater whereas the model represents the three seater.
The two Potez 63 were however modified during their time in Switzerland and without any picture proofing me wrong I stay with the three seater.