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If you look closely, mine doesn't have that name on the label.

I think that is a reference to who the importer was, of which there were only a very select few.
I believe Droescher was one of the...

Fantastic score!
Here are a couple of quick pictures of mine :

291916

291919

I have read that some consider these stones to be more desirable than Escher's.
It took me years to find this...