Mephisto, the world's only German ... of these tanks were made," said Jennifer Wilson, senior curator at the Workshops Rail Museum in Ipswich. "Germany was late to tank warfare in WWI.

In fact, Germany didn't even build a good chunk of its own WWI-era armored ... he enlisted in the German Army and went on to design not just the A7V but other tanks as well.

As the war wore on, then, the German army was forced to develop its own response. The Mauser Tank-Gewehr was a unique and cumbersome rifle from 1918 that fired a single monstrous shot: A 13mm ...