China Incident 4th Sasebo Special Naval Landing Force Dispatch Commemorative Cufflinks/支那事変佐鎮四特陸出征記念カフスボタン

支那事變 - China Incident

出征記念 -Dispatch Commemorative

Marked "950" silver and Hattori workshop mark "Marlet" https://asiamedals.info/threads/history-labels-i-marks-of-hattori-watch-shop-tokyo.19361/

佐鎮四特陸 - Sasebo 4th Special Naval Landing Force

Original case.