30.5 (4)
The 30 and a half mortar has been featured several times on this site. This post has two new features. I took the badge image, which unfortunately has a not very good resolution, but in return it shows the badge with the imperial crown.
The other news is the wearing photo. This is an extremely rare badge, as it belonged to one of the mortar batteries, the 25th battery, which only had a few hundred men personnel during the entire course of the Great War. Moreover, the wearing photo shows a badge that the wearer has slightly modified and changed. He has removed the background from both the right and left sides of the gun.