Blackening your teeth is an interesting custom unique to Japan. Its origins date back to the Kofun period, and traces of tooth blackening already remain on human bones and crabs. After that, the custom of tooth blackening continued from Nara, Heian, Kamakura, Muromachi, Sengoku, and from the Edo period to the early Meiji period. In fact, it has a history of over 1200 years.
In the process, tooth blackening, which was only for men and women, became a custom only for women, and what was only for the upper class spread to the common people. It is said that women who blackened their teeth had a softer mouth and looked more beautiful, and during the Edo period this practice spread throughout Japan as a custom for married women.
Well, a small pot containing a liquid for blackening teeth is called a tooth black pot, and Echizen is famous for its abundant katakuchi. In the tea ceremony, it is used as a flower vase, and is also called an iron jar.
This item is a tooth black pot from the Muromachi period. It looks like a flower.