This may be the original photograph:
http://blog.francedc.org/jacques-cousteau-sea-crusader/
To add to what has been said about the gear the captain is wearing, I can just make out the word "TARZAN" on the front of his suit. The name "Tarzan" reminds us of Edgar Rice Burroughs' famous fictional character

but it was also adopted as the brand name of the French diving equipment company led by Georges Beuchat, who developed foam-rubber diving suits in the Mediterranean port of Marseilles around the same time in the early 1950s when Hugh Bradner and others were experimenting with neoprene wetsuits in California. This may be the prototype of Cousteau's suit, dated 1953:

For further pictures, go to
http://daniel-cousteau.blogspot.co.uk/p ... tipos.html
There's also a Squale mask similar to the one worn by Cousteau in "Le Monde du Silence" (The Silent World):
It's interesting that Cousteau is wearing other companies' gear in a cut-out designed to advertise US Divers equipment.
David