See also https://asiamedals.info/threads/birth-of-his-imperial-highness-the-crown-prince-celebration-society-commemorative-paperweight.26749/
Officially these medals were called paperweights.
Article published in Asahi Shimbun on December 29, 1933 / Morning edition, page 11, column/...
1932
crown prince's birthdaycommemorativemedalcrown prince's birthdaycommemorative table medal
japanese table medal
made by mint
昭和8年 三越造幣局製皇太子殿下御降誕記念牌記念メダル
昭和八年十二月二十三日
皇太子殿下御降誕紀念牌
造幣局製
