These badges/medals were manufactured by Nagawa workshop, Tokyo
Badges, watch fobs and plaquettes made by Nagawa Medal Works/名川徽章製作所
Founded in 1927 and still active today. Standard workshop labels.
asiamedals.info
Three classes are known for today.
Blue ribbon = 5th class
Orange ribbon = 4th class
Green ribbon = 3rd class
Regarding two badges at the top
Maritime Self-Defense Force 4th Fleet Air Wing Badge/海上自衛隊 第4航空群章
Reverse 第4航空群 - Fleet Air Wing 4 https://en.wikipedia.org/wiki/Fleet_Air_Wing_4_(JMSDF) Original case. 海上自衛隊 - Maritime Self-Defense Force 第4航空群章 - 4th Fleet Air Wing Badge These badges were manufactured by Nagawa workshop in Tokyo...
asiamedals.info
