On January,18 1903 from the Marconi Rotary Spark Gap Station located in South Wellfleet, Massachusetts, Guglielmo Marconi successfilly completed the first Two Way Radio Trasmission between the United States and Europe.
#1472 Poland 23/07/31
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This very nice FDC from Poland was sent by Roman, thank you! It was
cancelled in Rzeszów on July 31 and arrived on August 8, 2023. The
mini-sheet commemora...
2 settimane fa
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