Bidspirit auction | Worldwide Pioneer Flights - Liberia

Worldwide Pioneer Flights - Liberia - 1936 (February 28), ''Air Mail. Six Cents'' surcharges, complete set of three on local FD cover with appropriate Monrovia date stamp, usual soiling, still F/VF and scarce, C.v. $825 as for set off cover, Est. $300-$400 , Sc. #C1-3