I took photos of German 7.7, Russian 122, Italian 149, Italian 75, Skoda 305 and something else but I am not sure what it is. There are several more guns, but I can not approach those for now. There is a reconstruction going on, but I hope that the photos would be good for start.
Oh, there is much more, just be patient. If someone is interested in some particular part of the gun, if I can reach it I’ll be happy to go there again and make a pick for you.