Date
Instituted: 1919.
Description: The obverse of this medal bears the head of the reigning monarch while the reverse dipicts a battleship with the inscription 'DIUTERNE FIDELIS'.
Metal: Silver.
Size: 36mm.
Bars: Bars were authorised for additional 15 years service.
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Naming: Impressed capital letters.
Comments: Awarded for 15 years service in the Royal Fleet Reserve but discontinued in 2000.
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