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CAM-27E3a%u2014%u2014July 17, 1928%u2014%u2014South Bend to Muskegon, MI.Thompson Aeronautical Corp.%u2014%u2014G.W. Hill, pilot%u2014%u201450 pounds flown. With both the standard square cachet in magenta, and a more elaborate two-color cachet (designer unknown).
