Back of the Book

C41 DC 4 line pair


C41 DC-4, 6c Carmine Coil Pair


C42 Post Office Building


C43 Globe and Doves


C44 Boeing Stratocruiser


C45 Wright Brothers


C46 Diamond Head


C47 Powered Flight Anniversary


C48 Eagle in Flight


C49 B-52 and F104 Fighters


C50 Eagle in Flight


C51 Silhouette of a Jetliner