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Production Details: Director of Physical Research (Admiralty Research Laboratories) (Production sponsor)
Director of Boom Defences (Production sponsor)
Royal Naval Film Section (Production company)
Personalities, Units and Organisations:
Keywords:
Physical Characteristics: Colour format: B&W
Sound format: Silent
Soundtrack language: English
Title language: English
Technical Details: Format: 35mm
Number of items/reels/tapes: 1
Footage: 450 ft; Running time: 17 mins