1912 (Aug. 11) Country Club Aviation Meet, Portland, Or. On realphoto postcard with Portland, Oregon "Aviation Station" purple duplex postmark and special cachet "U.S. Aeroplane Mail Service - This letter carried by Aviator Walter Edwards from Portland, Oregon to Vancouver, Wash.", photo card of biplane, some faults, scarce only 2500 pieces flown on this date, F.-V.F. AAMC No. 48a $250. Estimate  $100 - 150. $0 (Image)

1912 (Aug. 11) Country Club Aviation Meet, Portland, Or. 2 items, first is on uprated 1¢ postal card with Portland, Oregon "Aviation Station" purple duplex postmark and special cachet "U.S. Aeroplane Mail Service - This letter carried by Aviator Walter Edwards from Portland, Oregon to Vancouver, Wash."; other is 2¢ entire with same markings, scarce only 2500 pieces flown on this date, Very Fine. AAMC No. 48a $500. Estimate  $150 - 200. $0 (Image)