These styles of soda syphon/seltzer bottle were originally marketed in the period between about 1930 and 1955 and were made with a high quality hand blown Czech glass body, covered by a braided steel mesh coat for safety. It had a chromed metal collar and, unlike the earlier Type C, the CO2 capsule and key do not need to be left in place during use. Original examples of this soda syphon, which came in two main types (one with a flat base and the other with an "elephants foot" shaped pedestal foot) have now been fully restored to recreate how they would have looked when originally marketed, with all the glitz and glamour of sparkling chrome and bright nickel.
A HD video showing examples of the two types of type D syphon (and a type C) has been put onto YouTube to show them in all their recreated splendour: https://youtu.be/rItizBU93f8
You can now order an example of one of these syphons (stock depending) with a lead time of around 1 month. As these are made-to-order you can change the material used for the top-cap from polished copper (as shown) to aluminium; we can also add our logo embossed into the cap too.
The options are shown here: https://youtu.be/nPRSrHTO7FI
The syphon is supplied with a modern glass dip-tube/straw and original charger key of the type originally supplied with this model of syphon.