This 1956 philatelic souvenir label promotes the 24th Annual Convention and Exhibition of the Oklahoma Philatelic Society held October 12-14 at the Civic Center in Bartlesville, Oklahoma. The bright orange label features a detailed vignette of Oklahoma's first commercial oil well at Johnstone Park along with event text. A scarce mid-century cinderella item for collectors of stamp club labels and Oklahoma postal history.

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