Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - United States - PIONEER FLIGHT - POSTAL RATES SCHEDULE: 1911 (September 27-30), first class postcard franked by Franklin 1c green, first class letter - vertical pair of 1c and 3rd class small size letter - a single of 1c, flown during the Air Meet in Garden City, Long Island, tied by Aeroplane Station No.1 date stamp, ''Aerial Special Despatch'' line marking in black, all mounted on exhibition page, VF, Est. $500-$600, Sc. # 331