A 1976 SOPS Club Cachet Cover commemorating the 50th anniversary of the first commercial flight through Medford on the Seattle to Los Angeles route in 1926.  The cover utilizes a double cachet design featuring original 1926 cachet imprints.  Some are franked with the 13c Commercial Aviation stamp but all have the "Wings Over Oregon" slogan cancel and vintage printed card insert describing the histories of the original flight and the re-enactment flight which carried these covers on September 15th 1976.