Height 37 mm. Weight 12 g. Obverse 海鷲 - Sea Eagles /Arawashi https://asiamedals.info/threads/arawashi-badges-and-memorabilia.25254/ / reverse 支那事変大捷 - Great Victory in Sino-Japanese War 海鷲参加記念紀章 - Sea Eagles Participation Commemorative Badge 2601 = 1941
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