奈良県陸軍特別大演習委員徽章

High quality silver badge. Obverse 奈 for 奈良県 - Nara Prefecture reverse 昭和七年 - 1932 陸軍特別大演習委員徽章 - Large Army Special Maneuvers Committee Member Badge Marked SBD for Shobido workshop, Osaka https://asiamedals.info/threads/mark-on-japanese-orders-who-and-when.25816 and 純銀 - pure silver...