Soda Siphon

Hi there, i live in South Africa and came across your web site, which is really informative. I bought this soda siphon at an auction. I would really like to know more about the item, its age and origin, if its art deco or earlier / later etc. All help and information would be greatly appreciated. I buy and sell items on a regular basis and would not want to sell this before I know more about it. Maybe some of you have had the same or a similar item. Kind regards Freddy