Once I acquired a 'modern' double-hose regulator, local divers have been giving me all sorts of odd equipment.
Today for your viewing pleasure are an "old" ScubaPro and an "older" Calypso second.
The Calypso looks like it had snaps for a gag strap and the ScubaPro appears to have an adjustable cracking pressure knob
Insights into what these are and the approximate time they were used/introduced would be most appreciated.
Today for your viewing pleasure are an "old" ScubaPro and an "older" Calypso second.
The Calypso looks like it had snaps for a gag strap and the ScubaPro appears to have an adjustable cracking pressure knob
Insights into what these are and the approximate time they were used/introduced would be most appreciated.