Just wanted to open up a can of worms... I know, I know, both terms were used indiscrepantly for the K5's shelling the men on the beachhead at Anzio. But is "Leopold", the gun (or one of 2 guns?) found at Civitavecchia and now residing at the United States Army Ordnance Museum in Fort Lee (it is said Leopold and Robert were combined to create the existing Leopold) actually the "Anzio Express"? View attachment 22025 Looking for official documentation (if such a thing exists for nicknames) as I also have the internet and can read Wikipedia.