British military training film B313 C313 produced for the Directorate of Army Kinematography by G B Instructional Limited. Animated diagrams support photographic visuals to illustrate construction and operation, breech and firing mechanisms of BL 5.5 inch Medium Gun.
- 7 жыл бұрын
5.5 inch gun part II: breech and firing mechanism
- Рет қаралды 16,723
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