Photographs relating to the service of Leutnant Rudolf Wallesz with a bettery of the 4th Field Artillery Regiment (Feldkanonenregiment Nr.4) of the Austro-Hungarian Army during the First World War. The photographs were taken on the Eastern and Italian Fronts between 1915 - 1918 and show activities of the unit operating 150mm Howitzers (15cm schwere Feldhaubitze M 14); interiors of dugouts; group and individual portraits of members of the unit; the unit's mascot puppy 'Mungo'; an Austro-Hungarian armoured train and views of towns and villages and the front line area on both fronts. Named locations include: Belluno, Cholm, Cividale, Czernyst (Chornyzh), the Doberdo Plateau, Kote 70, Kote 182, Maniewiczy (Maniewicze), Primolano and Tolmein (Tolmin).
The collection also includes a bank receipt for 71 Marks covering a payment made by Wallesz on 2 July 1914 and a letter written to Wallesz dated 23 November 1919.
Black and white photographic prints and photo postcards of various sizes, many with handwritten annotations on reverse in either ink or pencil. Also a handwritten letter (in ink) written on a single folded sheet of paper, a printed bank receipt form completed in black ink and a Kodak negative envelope with an image of horses drinking from a water trough on the front cover and details of the photographer Erwin Singer.