This is a frame from 'The George Bennie Railplane System of Transport', courtesy of the BFI National Archive.
The image shows the railplane's 'car' under construction. The location is the Inchinnan aircraft Factory where rigid airships were built from 1915 to 1921.
The full film is on the BFI Player.
Location: Inchinnan Aircraft Factory
Original line: Beardmore Engineering Co
Photographer: Courtesy of the BFI National Archive
Contact photographer: Courtesy of the BFI National Archive
Date: 1929
Image number: 54417