Liberia, 1941, 50¢ on 2¢//$1 Airmail Provisional Issue Covers. Collection of 38 covers with the "First - Flight, Liberia - U.S." cachet handstamp; various singles and combination frankings, different airmail borders, one with enclosure stating…They are short of proper stamps for this flight and so have limited everyone to three stamps each., F.-V.F., a scarce assembly of these first flight covers, stamps off cover catalog $2,125 in Scott. Scott No. C18, C20-C26  Estimate $1,000 - 1,500. $0 (Image)