The 15 cm schwere Feldhaubitze 13, was a heavy field howitzer used by Germany in World War I and the beginning of World War II.
15 cm sFH 13
BL 6-inch 26 cwt howitzer
The Ordnance BL 6 inch 26cwt howitzer was a British howitzer used during World War I and World War II. The qualifier "26cwt" refers to the weight of the barrel and breech together which weighed 26 long hundredweight (1.3 t).
A 6 inch 26 cwt on World War II pneumatic tyres at the Royal Artillery Museum.
Battery firing, World War I
Use of girdles around wheels, Somme September 1916
Near Boesinghe, Battle of Langemarck, August 1917