Thank you to everyone for your interest. This is a sake warmer pot by Kamashi (pot maker) Michihiko. It comes with a dyed, interchangeable lid. Rust is visible on the inside, the underside of the lid, and the bottom. As shown in the 10th photo, unrelated characters have been written in red marker on one side of the wooden box. Please only purchase if you understand the condition described above. #Michihiko #SakeWarmerPot #JapaneseTeaCeremony #ShippoPattern #JapaneseTeaCeremony #Chakaiseki (tea meal) #Chaji (tea gathering)