The naming of an aeroplane - The County of Monmouth.
Unused / unissued material - no paperwork - dates unclear or unknown.
Views of an aeroplane being christened in a hanger. The fuselage is draped with a Union Jack flag and a bottle is hung from its propellor. The man doing the christening / blessing smashes the bottle with a small hammer. The flag is removed to show that the plane is named 'The County of Monmouth'. CU of men standing by plane.