Liberia, Airmail Cover Balance. Mix of over 70 covers from first issue to 1980's; includes scarce 1936 Inaugural Airmail Service flight cover with #C1, 1937 registered airmail cover to Greenland forwarded to Alaska and returned, interesting 1940's usages including 1948 Sky Merchant World Flight lettersheet (29 different postmarks including blue Harbel), 1943 Reopening Airmail Service cover, 1948 First Flight covers in moderate duplication, 1960-80's 2nd Class Air Mail, some incoming flights, F.-V.F. Estimate  $200 - 300. $0 (Image)