This is a Katakuchi (one-sided spout bowl) from the Matsushiro-yaki Okada kiln. From Matsushiro, on the west side of the Chikuma River, there were eight villages that were exclaves of the Ueda domain, and one of those villages was Okada village. The kiln that was fired in Okada village is the Matsushiro-yaki Okada kiln, which began firing around the late Edo period and flourished in the Meiji era, mainly producing everyday utensils such as kneading bowls, tokkuri (sake bottles), katakuchi, jars, and suribachi (grinding bowls). The Okada kiln also used various glazes such as red, white, black, and blue, and the blue glazed pottery is particularly famous. This katakuchi has the blue glaze applied around the rim, creating a spherical landscape that is magnificent. The condition is good. The size is 23 cm in diameter at the mouth, 11 cm in diameter at the base, and 11.5 cm in height. It will be carefully packed and shipped.