Hello,
Currently for sale on ebay at :
https://www.ebay.de/itm/Foto-AK-Flug...IAAOSwQc1doKQR
is a photo of a Fokker D.II 1559/6, if I read the serial correctly.
Looking at the rear of the postcard I believe the unit Kest 6 is mentioned. Where I need help is with the pilots name as I cannot read the script, though safe to say it ends in mann? Can anyone read the name in the top right corner?
Regards,
Clint