Vintage Japanese tea ceremony confectionery

"Vintage Japanese tea ceremony confectionery square serving plate / bowl stoneware.
Carved with Japanese pampas grass also known as susuki on the inside and painted with blue and brown diamond shape fencing on the 4 outer edges. You can feel the indention of the potter's finger on the inside and outside of the 4 edges. Unglazed at the bottom with a stamp of the maker. "
In very good vintage condition. No observation of cracks, scratches and chips. 
188 x 188 x 40 mm
840 gram 
Made in Japan around late 20 century 
Available for sale