austria circa 1988 stamp printed shows physicist and philosopher ernst mach |
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| navigate by keyword : 1838 1916 1988 aged anniversary antique austria austrian birth black briefmarke canceled closeup collectible collection ernst europe european historic historical history hobby issue letter mach mail old osterreich philatelic philatelism philately philosopher phycisist physics physiker portrait post postage postal republik retro science scientist seal sello series stamp timbre used vintage |
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| AUSTRIA - CIRCA 1988: A stamp printed in Austria issued for the 150th anniversary of the birth of Ernst Mach shows physicist and philosopher Ernst Mach, circa 1988. |
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