Hon' ami Koetsu - "Mount Fuji" raku teabowl - Japan - Momoyama period , early This is an example of wabi-sabi, the Japanese aesthetic of finding beauty in imperfection.
chawan tea bowl raku by Zamikhovsky
Tea bowl, ca. 1575 Tanaka Chôjirô, Japan Rough clay covered with a dull black glaze; three spur marks of iron supports.