It has taken 15 men nearly six months to create this single katana sword. Though fit for a samurai warrior, this sword will likely sell to art collectors for hundreds of thousands of dollars.

The katana blade is forged by master swordsmith Teruhira Kamiyama, while the aogai (mother-of-pearl inlay technique using abalone, turban, pearl oyster and other shells) blue shell lacquer scabbard is ...