8:35am PDT - June 15th, 2021

Ephemera - Poster Stamps Poster stamps are large (usually) labels, often perforated, issued to advertise or to promote events. Learn more about #ephemera at the Ephemera Society of America. https://t.co/qSxKB0jXOj #Collecting https://t.co/ldOoyjSa4E

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