1906 Suikōsha Japanese Naval Officers’ Club Dinner Party Commemorative Table Stand/明治三十九年五月一日水交社晩餐記念章

See also https://asiamedals.info/threads/japanese-imperial-navy-table-stand-anchor-with-horseshoes.25056/.

Obverse

明治三十九年五月一日 - May 1, 1906

水交社晩餐記念 - Suikōsha Dinner Party Commemorative

reverse marked with a maker's mark

宮本 - Miyamoto [Shoko] https://asiamedals.info/threads/history-marks-and-badges-of-miyamoto-shoko.19512/

and silver hallmark

純銀 - pure silver.

 

Kaikosha (偕行社, Kaikōsha) was an organization for active-duty commissioned officers and warrant officers in the Imperial Japanese Army for mutual aid, friendship, and academic research https://asiamedals.info/threads/officers-club-kaikosha-cufflinks-kafusubotan.24304/#post-342344. The Suikosha (水交社 - Suikōsha) was the Navy's analogue of Kaikosha.​

 

Another example.