Hussar of the Prussian Hussar Regiment Queen Wilhelmina of the Netherlands (Hanovarian) No. 15, Wandsbeck (today City of Hamburg). Field postcard from the Hussar Gerhard Wiechmann (1895-1978), Wandsbeck, from septembre 17th 1914 to his brother Johann, monastry Blankenburg near Oldenburg (Oldenburg). He wears the so-called Friedensuniform (peace uniform) with a light blue coat and black blue trousers.