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Galeazzi helmet 12 bolts

Very rare helmet of Italian diver "Galeazzi"

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Siebe-Gorman helmet 12 bolts

About 1920, it is the result of most traditional helmets of SiebeGorman. It has an interior volume a little more important than its predecessors, its grids are moulded, but it still has its keys divided by "quarter". The letters of its plate are in "hollow".

Number of this Helmet 9677 classification on collar 9900.
 

Siebe-Gorman helmet 6 bolts

This helmet Siebe-Gorman 6b and three port-holes is most representative of all the helmets of diver, it evolved/moved slowly with some technical improvements, but there remains close to Siebe of 1850 and even nearer to Siebe-Gorman of 1960.

Helmet Divinhood N°3

Fifteen years after the startup of N°2, Miller-dunn markets in 1940 Divinhood n°3, of an easier use for small interventions, it will be very appreciated, but there will remain a typically American product. The cost of this equipment with its pump, was the quarter of the Foot-Heavy prices of a complete unit...
 

Helmet with 3 bolts type GKS3-M.

To intervene up to -150 m, the U.R.S.S brings into service, at the end of the Fifties, this type of helmet with injector helium-oxygen.
 

Helmet with 3 bolts type USV 50-M.

Modified by the addition of a handle of transport and an appendix for a micro capsule telephone, this helmet, simple reliable economic, is the 150 years result of the slow evolution... of the helmets with 3 bolts. It is always in service especially in the diving leisure.

 

Russian helmet 4/12 bolts

Like helmet USV 50 3 bolts, it has a single compound telephone catch and air intake. It does not have a handle of transport nor of micro appendix telephone. Many SJA 12b were transformed into USV 50 12b.
 

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Helmet Morse with 4 port-holes and 12 bolts

It dates from the surroundings of 1912, its exit of the telephone cable is typical to the Morse manufacturer. One finds on this helmet of many elements which will pass on the future MK V.