These black and white pictures were provided by John Higton. The first from a similar viewpoint to the one above shows the tops of the two projectors with the shared second mirror between them. The second shows the excellent little darkroom in which the film was loaded into the large cassettes. A nice little sideline for the fitter was to cut the unexposed 'trailer' film from the PDU cassettes into five foot lengths then load them into the very much smaller cassettes from his friends' cameras.