Hi guys, full explanation of Asch provisional issue can be found on the website bwloq ;) During the period of "Free state of Asch (german) \ Aš (czech)" post office clerks were using czech stamps with 2 inscriptions of Aš and Asch. This area was speaking in 2 languages german and czech that's why is the stamp in both of them. Later was czech inscription of Aš removed. And 1 means post office 1 in the city of Aš.
Full description can be found here:
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