Photograph shows the barrel segment of a Skoda 305 mm Model 1911 howitzer gun. The Austro-Hungarian Army loaned 8 of these guns to the German army in August, 1914 and they were
Takom 1/35 Skoda 30.5cm M1916 Siege Howitzer, by Scott Van Aken
Skoda 305 mm Model 1911 - Wikiwand
Skoda 42cm M 1917 Siege howitzer - Work in Progress - Armour - Britmodeller.com
Skoda 75 mm Model 15 - Wikipedia
Skoda Heavy Artillery -Plate 7 by wingsofwrath on DeviantArt