This is a nice original period photo postcard 'Heinkel Jagdflugzeuge He 51 im Sturzflug' (Propaganda-Postkarte) showing 2 Heinkel He 51 airplanes in a swoop. This postcard measures approximately 14 x 9 cms in size and was published by 'Kunstverlaganstalt Bruno Hansmann' from Kassel. The postcard is in excellent unsent condition.Nice original postcard!