In the search for the truth about what happened to Paul, I have been finding persistent clues involving deep-sea diving or something simulating it. In several posts--like the one of May 21, 2010--I speculated that Paul may have used--or had used on him--a machine called a hyperbaric oxygen chamber (which simulates the atmospheric pressure of deep-sea diving.) Alternately, I thought he might have owned a personal submarine (see my March 27, 2011 post.)
I was looking for videos about Buckinghamshire made by the English news company, British Pathe and I came across an extraordinary video filmed in 1966.
First take a look at the video at: http://www.britishpathe.com/ . Type French seismic in the search box and you'll find the film titled "30 Seconds News: French Seismic Tests & One Man Submarine (1966)."