Hi Sophie!
You wrote: "The number 206 refers to the edition number of this weight. So it is not a 1/1 but number 206 of 350".
Are you sure? Usually by a limited edition we have two numbers. For example in this case 206/ 350.
But here we have only the number 206.
Alan, in my opinion, is also usually the "Pope of paperweights" and he have said perhaps 1/1.
What is right?