This is a traditional Hoggett decanter:

So - I looked far and wide and found that these decanters were only readily available in Britain and that 80% of the sellers decline to ship to the colonies, while the reats want about half the not inconsideerable value of the item for shipping. They presumably book a junior clerk in business class and deputize him to do the delivery.
Being thus frustrated, I looked for alternate ways to accomplish the same thing. Having a background in chemisry, I simply contacted a chemical supply house and ordered a couple of round bottom 1000 ml boiling flasks and picked up a suitable base locally. The result (without stoppers at this point):

I shall try them out vey soon and report back. I have always wondered about using this sort of flask, especially at the end of a wine-laden dinner as all it would take is for a wine besodden guest to absent mindedly set the decanter/flask down on the table to result in a tidal wave of wasted wine. We shall see.

