i own 2 hookah systems that pump air down to you and a SNUBA - which is scuba with tank on surface
instead of on back and i own 6 underwater machines...need to retire so i can do more...still got a few more yrs
...if i live that long
Must had been popular back in the day.. I have 3 just like it.. And I know they were old for they were unmarked, so it would place them before 1906/07. Before gold was required to have a fineness mark.