Tokoname ash-glazed chawan by Yamada Jōzan III (1924–2005), Living National Treasure for Tokoname teapots. 

This teabowl has a smaller deep form with a dense ash melt and dark surface. Good balance and clean silhouette. In many ways this is an excellent tea bowl and is one of my personal favorites. Its very rare to see such a rich kiln-effect firing from Tokoname or Yamada Jozan 3rd. 

Size: W 11.7 cm, H 6.7 cm, 200 g.

Comes with the original signed wooden box and accessories.

Bowl is signed twice. On the bottom the "Yamada Jozan" - mark and on the side of the kodai the "Yamada Jozan 3rd" - mark

Condition is excellent overall but there is a small unglazed breakage of the glaze on the interior bottom - either there was a stone or other piece of debris that was removed or its an exterior damage of something striking the bottom of the bowl. The shape of it being sharp-angeled gives me the intuition there was something instead of it being a breakage. I have used the bowl few times and did not notice any leakage.  

Jōzan III was one of the key postwar Tokoname potters, trained under Jōzan I and II and active from the 1950s onward. He was designated a Living National Treasure in 1998.