Canadian World War II aviator who shot down Germany's greatest war bird, Manfred von Richthofen - the Red Baron. Commemorative cover, 6.5 x 3.75, with a stamped on cachet honoring the first flight from Great Falls to Bissett, signed on the front in fountain pen, 'Roy Brown, Pilot.' In fine condition, with some light toning and signature of another gentleman to right side. RRAuction COA.