At the top of the page, and carrying what seems to be a War Office contract number this Pultra accepts what seems to be a standard compound slide rest and other accessories--but is of otherwise rather different design. A simple cantilever WW-type bed was used with the headstock spindle driven by an overhung pulley on its left-hand end. This type of drive system was also used on the 17/50 and Series 17/70 models - but with the pulley hidden under extensions to the headstock casting. It's just possible that this is a development machine, made to test the concept. Even the compound slide rest was different, though the micrometer dials were recognisably "Pultra".
Lower down the page is what appears to be a genuine Pultra lathe using a watchmakers' lathe bed. However, it is much more likely that it's just the headstock, slide rest and tailstock from a Pultra mounted on the bed of one of the many unbranded WW (Webster Whitcombe) lathes manufactured before 1945.
As the Model P Pultra was made to the WW standard the writer has seen many instances of parts from several makers included in a kit of second-hand parts - all the major components were interchangeable on the standard-form bed.