英文說明:This is the bottom cylinder of the two-piece earthenware smoked oil manufacturing set. It was filled with peanut oil and buried underground for smoking. The small mouth was left protruding above the ground and the container filled with camphor chips was affixed on top of it. Together, they would be placed into a smoldering fire to allow smoke to mix with steam, which then mixed with peanut oil to create camphor scented smoked oil.