Built on someone's WWI trophy rifle perhaps? Some work went into that obviously.

"White men with their ridiculous civilization lie far from me. No longer need I be a slave to money"

"The largest amount of money made [by Bell from ivory taken in a single day was 863 pounds sterling." That would buy a decent house in those days. Bell retired to a nice place in the countryside back in the UK, not a grass hut in the African bush.