The kit includes 4 WWI Austria - Hungary 75mm Skoda Mountain Guns. The 75mm Skoda Gebirgskanone M.15 was a Mountain Gun used by Austria-Hungary during WWI. In German service it was known as the 7.5cm GebK 15. Italians used them in WWII as Obice da 75/13 where captured guns were used by the Germans in WWII as 7.5cm GebK 259(i).