HMAS Diamantina (K377/F377/A266/GOR266), named after the Diamantina River in Queensland, is a River-class frigate that served the Royal Australian Navy (RAN). Constructed in the mid-1940s, Diamantina was active from 1945 until 1946, was placed in reserve, then was recommissioned as a survey ship from 1959 until 1980.
HMAS Diamantina in the South Brisbane Dry Dock in 2008
Diamantina berthed in Melbourne prior to her 1946 decommissioning
Diamantina afloat on the Brisbane River in 2006, during repairs to the drydock at the Queensland Maritime Museum
The QF 4 inch Mk XVI gun was the standard British Commonwealth naval anti-aircraft and dual-purpose gun of World War II.
Twin Mk XVI on HMCS Haida
Crew of a dual 4-inch at action stations aboard HMS Berwick while in screening the Atlantic Convoys in May 1943.
Twin guns of HMAS Swan bombarding shore positions in New Guinea, February 1945
Single Mk XX mounting on HMAS Barcoo, 1945