Here's a comparison, "before & after", of a Japanese Type 41 75mm Regimental gun or "mountain gun" on Peleliu. The story is fascinating. This gun rained terrror on the Marines during the invasion in 1944 and for 2 of the next days. The Japanese would roll this piece out and fire, then roll the gun back into the nearby cave located high atop the ridge. The gun made it's last kill on C Company's MG platoon and decimated an entire squad and gun. A sherman tank and bazooka operator silenced the gun forever. Several shell casings were found nearby and the cave was sealed shut from the bombardment.