Tea Ceremony Bowl Fired on sea shells. This is a modified Tenmoku shape, being wider at the base. This bowl is stamp and rope impressed 5"w X 3."h Sold by maker. I am a Master Potter. Apprenticed three years with National Living Treasure Tatsuzo Shimaoka student of Shoji Hamada, Built my own wood kiln in Mashiko Japan and made work there for 7 years after my apprenticeship. Member of the informal group MingeiSota, led by Warren MacKenzie