Capital Airlines Fleet Club Card 1946. No. 29.  Guaranteed genuine. Capital Airlines was an airline serving the eastern, southern, southeastern, and midwestern United States. Capital's headquarters were located at Washington National Airport (now Reagan Washington National Airport) across the Potomac river from Washington, D.C., where crew training and aircraft overhauls were also accomplished. In the 1950s Capital was the fifth largest United States domestic carrier by passenger count (and sometimes by passenger-miles) after the Big Four air carriers (American, United, TWA, and Eastern).Note: This item will be properly packed. We will be listing many interesting items over the coming months. Please visit our site often. You will not be disappointed!