Scuba
A 1958 DW Mistral one stage regulator with a removable exhaust valve port with green reproduction hoses.
DW Mistral
This DW Stream Air one stage regulator was developed around 1957.
The 1956 DY Jet Air (top regulator) was made of a high impact fiberglass brown-colored phenolic compound with raised letters. In 1961 it reappeared with a white decal label and was made of cycolac material (bottom regulator).
The very popular 1964 U.S. Divers chromed bodied DA Aqua Master regulator was introduced to the market in 1958 and featured a hooka port for direct surface air supply.
1970-1975 chromed Aqua Master with a new round stick-on decal that replaced the plate type and a two-hose diving mask.
A Voit 50 Fathom single stage regulator with grey hoses and mouth piece.
A Voit 50 Fathom single stage regulator which is almost a twin to the USD Mistral design.
The Trieste was the pride of Voit's two-hose regulator line, being much smaller than other two hose models with a featured low and high pressure port. This regulator was produced from 1960's to 1970's.
European Regulators 
Mistral
Medi
Divair
Northill Air Lung
Nemrod Tripple diving tanks
Siebe Gorman Merlin
AquaLung DA AquaMaster attached to a set of Supreme Divers double tanks, Toronto.
Very early double hose lung fabricated from an aircrafts oxygen delivery regulator and storage tanks for WWll airforce pilots.
Rare Regulators
Nemrod
Voit
Aqua Lung
