Bidspirit auction | Worldwide Pioneer Flights - Great

Worldwide Pioneer Flights - Great Britain - 1933 (April 12), Great Western Railway Air Services flown cover to Plymouth, franked by 1½p orange brown, large Western Railway parcel stamp 3p black on green paper is alongside, one tied by boxed Cardiff ds in violet, all appropriate markings, VF, Est. $100-$140, Sc. #189