These drawings are the only photos of the original general assembly drawings taken before the fire in which they were lost. Most of the detailed drawings survived but these general assembly drawings were lost in the fire in 1953 at the Vauxhall drawing office. These are the only known photographic copies which were given to John Sutton when he worked at Vauxhall Motors in 1962. They had been kept in the bottom drawer of the desk of the man in charge of the drawing library.