Hi My husband is reading "The Arms of Krupp." In a nearby town, there is a German artillery piece and we'd like to know if it is a Krupp gun from WWII. We found no indication of the the three rings of Krupp. It does have a circle divided like the Mercedes emblem with the letters B, V and G in each part of the circle. Additional markings include "L2263 MAN 1936" R544, 1939, Sg76630BVGR1.30F1.24Man and two stampings of the Third Reich eagle/swastika emblem, one has W (can't read it) A357. It is mounted on rubber tires, has upper and lower recoil cylinders, folded arms and he thought the muzzle barrel was stamped 120 - he did it by feel as we didn't have a ladder. We also didn't have a camera with us but will post a picture as soon as we get one.