Dan, I may have to sacrifice a stamp and have my daughter run it thru a mass spectrometer or whatever gadget they use for that purpose at her museum so we can find out what it is. Though it won't make the headlines at least we'll know and can add that tidbit to stamp knowledge. May have to wait though as her museum is closed due to the virus.
Quote: I may have to sacrifice a stamp and have my daughter run it thru a mass spectrometer or whatever gadget they use for that purpose at her museum so we can find out what it is.
Before destroying one of your stamps, try looking at the following three links plus the Barwis 3 cent green article that can be downloaded from the USPCS web site. Membership may be required to download.
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Posted 07/26/2020 10:11 pm
