Interesting,....It must be nearly 40 years since I last saw and used one of these.
This was a British made and designed cameras which was really intended for technical use with osciloscopes and microscopes etc. It's inspiration were the many leica cameras used by the Royal Air Force during the research work on early radar both during and just after WWII. Such was the need for scope cameras that the UK War Dept had caused the leica production to be removed from Wetzlar at the end of WWII to be set up in the Uk as the 'Reid' camera production by the aeronaughtics company, 'Reid & Sigrist'. However, these were expensive and always in short supply so various companies and individuals attempted to fill the gap. The 'Periflex' is one of those. It was not very nice to use as the basic crudeness compared to Reid or leica was intrusive. Also, the front shutter button lets it down in my opinion, at least for it's intended purpose with technical equipement in a recording camera mode.
This camera was/is interesting and of original design not used by any other company/designer, but was essentially a failure although there was an improved, more 'upmarket' version with which the Corfield company hoped to entice amateur photographers. Unfortunately, these never had the 'feel' of presicion German/British cameras.
