Hermann Diebold was pleased to find two old Youtube movies that claimed to show the production of Bestmann. He was disappointed to find that in fact they are not Bückers being produced, but Messerschmitt Bf108 "Taifun", the sport aircraft that preceded the Bf 109. Interestingly Hermann's first clue was the lederhosen some of the workers were wearing. This would have been common in Bavaria, but not so much in Berlin.

Bücker or Messerschmitt, they still make interesting viewing. Take a look.