IMPRESSIVE AIR POST COVER COLLECTION IN FIVE BINDERS. hundreds of covers almost exclusively from the 1920s and 30s, including (but not limited to) first flights, pilot signed covers, airport dedications, Lindberghiana, zeppelins, crash covers, and much more, generally fine to very fine and mostly selected for eye-appeal or historical interest, a wonderful assortment for resale or further research/expansion, additional binder of airmail etiquettes, viewing a necessity to understand the scope of what's here