E-Goryeo Bowl Diameter: 17.5cm Height: 7.7cm Purchased at auction as E-Goryeo. I believe there was a comment mentioning the Joseon Dynasty, but I'm unsure whether it's from the Cizhou kiln or Joseon Korea. The box is sturdy. I don't have detailed knowledge, so I would appreciate it if you could confirm the age, etc., from the images. Thank you.