Vintage Japanese Chawan Hand Turned Showa Era Jubako Along with a warm centuries

Along with a warm centuries old patina

please see the last picture

from Shōwa Shokugyō E-zukushi (Japanese Vocations in Pictures)

It is marked on the bottom 九谷製 大日本 (Kutani-sei Dainippon)

copper alloys and vitreous glass enamel

Vintage Japanese Chawan Hand Turned Showa Era Jubako Along with a warm centuriesJapanese Shino ware chawan (matcha tea bowl) with a soft, feldspathic glaze showing natural variation in cream, grey, and light earth tones. The form is rounded with a slightly irregular rim and a well defined foot. The surface shows subtle speckling and pooling typical of Shino style glazing, with a warmer interior tone from use and firing. Unsigned and without box. In good condition with no cracks or chips observed. A solid, usable tea bowl with a