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Post by kooolabs on Jan 17, 2024 16:34:16 GMT
marks both 344-353 and block 9-9 were released in 1953.
The certificate mentions the anniversary of Karl Marx, March 14, 1883. i.e. 70 years anniversary.
As for the date on my series, as I stated, it is later, September 4, 1956. But this later cancellation is immaterial in this case as it is a block of 3 stamps. It is therefore not a stamp used from block 9.
I still can't think of any other explanation, that it is really a block of stamps 347 y1, which was not used for postage until 1956.
If someone were to forge this, I believe they would leave the stamps on the letter as proof and better value.
Thank you all for the discussion and I hope that the discussion does not end. I would like to get the result, positive, negative,,,, it doesn't matter
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