A depiction of Müller's silk reeling factory at Tsukiji, in Tokyo, by the ukiyo-e artist Utagawa Yoshitora
Casper Müller was an oyatoi gaikokujin, a Swiss man hired by the Tokyo-based Ono Silk Filature Company to build a modern-style silk reeling factory for them.
References
- Gallery labels, "Imported Silk Reeling Machine at Tsukiji in Tokyo," Metropolitan Museum.[1]