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Ginsai refers to the silver patches and ichimatsumon is the checked pattern, while the last three names refer to the shape: shiho means square, sumikiri refers to the cut corners and sara means plate. Sumikiri is usually a feature of lacquer trays.
Hayashi's works bearing the koiro label. It basically means incense-colored, or light beige. Koiro was popular during the Heian Period and among Buddhist priests ranks second only to purple for color used in clothing.
Mamiko Hayashi's porcelain