I don't mean who handed him the bullets, I mean before that: were they manufactured by a big company? Did a peasant worker on a factory line chisel a little rock together? Were they simply purchased at a store on the way to Sarajevo? If so, where did the store get them? A supplier? Homemade?

I find Ferdinand's assassination fascinating in that it's rippling effects dramatically changed the world and I'd just like to know, if possible, the specific origins of that little piece of rock that found itself changing the very course of humanity.

Thanks in advance.