Merit badges of Ibaraki Prefecture Firefighting Association with similar design https://asiamedals.info/threads/ibaraki-prefecture-firefighting-association-merit-badges.24851/
Today this association is known as
一般財団法人 日本海事協会 / Nippon Kaiji Kyokai
https://ja.wikipedia.org/wiki/日本海事協会
3rd class badge.
Most likely the pin was restored.
Pin inscription reads
参等功勞章 - 3rd class merit badge
Another 3rd class badge with re-laid enamel.
Original case.
義勇艦隊建設 - Construction of Volunteer Fleet (not simply "fleet construction" or another wrong translation "dutiful and brave fleet construction").
参等功勞章 - 3rd class merit badge
帝国海事協會 - Imperial Marine Association
Interestlingly inscription on the case lid uses old style (and seal) variant of 3 参 but on the pin wew observe the modern one 三.
5th class badge.
義勇艦隊建設 - Construction of Volunteer Fleet
五等功勞章 - 5th class merit badge
帝国海事協會 - Imperial Marine Association
6th class.
The design of 6th class badges is paractically identical to 5th class.
Only reverse insciptions are different.
Instead of 五等功勞章 - 5th class class merit badge we observe 六等功勞章 - 6th class merit badge.
7th class.
Size 46 mm.
Weight 20.5 g.
Case 96mm X 95 mm X 27 mm.
Original case.
7th class with original document issued on 20.12.1907
Issued to 神戸太郎 - Kobe Taro.
Today this association is known as
一般財団法人 日本海事協会 / Nippon Kaiji Kyokai
https://ja.wikipedia.org/wiki/日本海事協会
3rd class badge.
Most likely the pin was restored.
Pin inscription reads
参等功勞章 - 3rd class merit badge
Another 3rd class badge with re-laid enamel.
Original case.
義勇艦隊建設 - Construction of Volunteer Fleet (not simply "fleet construction" or another wrong translation "dutiful and brave fleet construction").
参等功勞章 - 3rd class merit badge
帝国海事協會 - Imperial Marine Association
Interestlingly inscription on the case lid uses old style (and seal) variant of 3 参 but on the pin wew observe the modern one 三.
5th class badge.
義勇艦隊建設 - Construction of Volunteer Fleet
五等功勞章 - 5th class merit badge
帝国海事協會 - Imperial Marine Association
6th class.
The design of 6th class badges is paractically identical to 5th class.
Only reverse insciptions are different.
Instead of 五等功勞章 - 5th class class merit badge we observe 六等功勞章 - 6th class merit badge.
7th class.
Size 46 mm.
Weight 20.5 g.
Case 96mm X 95 mm X 27 mm.
Original case.
7th class with original document issued on 20.12.1907
Issued to 神戸太郎 - Kobe Taro.