Rai “recently traveled to the Kaiserburg Museum in Nuremberg, Germany, to study the kind of metalwork detail that went into making suits of armor. For a recent order of World War II helmets, he ensured the leather liners were stamped with numbers used by the original manufacturers. That kind of effort, he says, helps protect his business from competition. ‘This is painstaking, labor-intensive work. There’s a lot of research that has gone into our inventory, and that’s not easy to replicate,’ he said.”