Copyrights: Datatype 223-38701, 223-38801, and 223-38901, Rel. 6.1, U15, U16, U17, 2020A, 223-61801, 61901, 62001, Rel. 2.3 Copyrights: Datatype 223-40100, 223-40200, and 223-40300, Rel. 1.0, U15, U16, U17, NCR7930, 223-42101, Rel. 1.1, UD3 Copyrights: Special collection--airmail stamps of the 1970's--titlepage: 11-cent silhouette of Jet: Additional title: Sheet, Cil, Nine cent Delta wing, 21-cent USA and Jet, 17-cent statue of liberty, 11-cent National Parks centennial, 11-cent olympic winter games, 11-cent progress in electronics, 13-cent winged envelope: sheet, Coil, 26-cent Mount Rushmore, 18-cetn statue os liberty, 25-cent airplane and globes, 31-cent plane, Globes and flag, 31-cent Wright Brothers, Flyer and shed, 21-cent octave chabuteand biplane glider, 21-centgliders and octave chanute, 31 cent 1980 olympics, 25 cent Wiley Post and Winnie Mae, 25-cent Wiley Post, Winnie Mae, and Pressurized suit
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