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BL inch Mk VIII gun breech closeup HMAS Huon AWM EN. Breech mechanism of the bow BL inch Mk VIII gun mounted on the destroyer HMAS Huon photographed at the dockyard in Devonport England This is clip from full image File BL inch Mk VIII gun breech HMAS Huon AWM EN EN author PDAustraliaGov DEFAULTSORT Huon HMAS Huon BL inch