Otaru Kama Hakusei Toen Tea Cup Couple Set Height: Large 9.5 cm, Medium 9 cm Known as Otaru-yaki, featuring a transparent blue-green glaze of green jade Oribe, these teacups are from "Otaru Kama Hakusei Toen," the oldest kiln in Hokkaido. The foot of the cup has a beautiful gradation of dark blue. Unused item from a collection. No box.