1st variation.
Reverse
今日庵, - Hut of This Day /see https://en.wikipedia.org/wiki/Urasenke /
Stamped number "19507".
Original case.
Badge was made by Ogawa Kinshodo /小川金正堂/ workshop in Kyoto https://o-kinseido.com/.
badgemadebyogawakinshodo
japanese tea ceremony badgeogawakinshodo
school of japanese tea ceremony badge
urasenke school of japanese tea ceremony badge
今日庵徽章
小川金正堂
裏千家徽章