Lot
689 
United States, Private Airmail Adhesives, a fascinating group mount on exhibition pages of the short lived Private Airmail adhesives issued by Western Airlines, American Express, Burlington Northern & Pride during the early 1980's, includes adhesives, first day covers and a few mint sheets, also included is a folder of items issued by the Independent Postal System of America (IPSA) from the early 1970's, a wonderful group for further research (no photo). Estimate $300 - 400.
Realized: $230