In 1895, Charles Petit took over the rights from Auguste Denayrouze and continued his buniness producing diving helmets. This continued until 1920, when he started a partnership with René Piel.


Photo Courtesy Louis Jacques Virgona.
 
Here above we have a rare No Bolt Charles Petit helmet in pristine condition . The helmet has 4 lights , the front light being screwed into place . The name plate is located under the weight . There are weight lugs at the front of the helmet . This helmet bears great resemblance to the Siebe Gorman No bolt helmet . Check it out in the Siebe Gorman section.
 

A regular 3 bolt Petit helmet. This one served in the SMIT salvage company from Holland. 
Notice the name on the neckring. The exhaust valve is missing.

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