Rescue demonstration by He 59s of the paramilitary Seenotdienst, presumably near their base on Norderney Island. D-AGUI is c/n 1511. The obsolete biplanes were converted to He 59N rescue aircraft by the Bachmann company in Ribnitz. Photo from: Nationaal Archief (Netherlands)
This photo was added on 7 March 2021, and has since been viewed 2944 times.