Obverse
日露海戦 - Russo-Japanese Naval Battle (i.e. Tsushima Battle)
歴戦記念 - Long Military Service
reverse
昭和十年 - 1935
第三十回 - 30th
海軍記念日 - Navy Day (In the Empire of Japan, Navy Anniversary Day/海軍記念日 - Kaigun Kinen'bi was celebrated on May 27 from 1906 until 1945. It was established in commemoration of the Battle of Tsushima https://asiamedals.info/threads/imp...ay-badges-a-k-a-rising-sun-flag-badges.28623/).
大連市役所 - Dalian City Hall
Marked 純銀 - pure silver.