Any ideas? I'm preparing an article for my webpage and I I would appreciate your help

oo1.jpg
Shelling the forts of Bizani, March 4–6, 1913
10.5cm Krupp ringkanone? L/35? C91? Looks like the Bucharest Museum 105 (http://www.flickr.com/photos/massimofot ... 4595717860) or the Elverdinge (http://canonspgmww1guns.canalblog.com/a ... 09120.html) or the Saint Eloi (http://canonspgmww1guns.canalblog.com/a ... 85515.html) 120mm sample...
002.jpg & 003.jpg
Those two look heavier, 15cm? Crown Prince Constantine in front of both guns
Thanks in advance
Dimitris Lampaditis
Athens, Hellas