Scott Catalogue USA: 331
unused; imprint, star and plate number 5402 in margin
Scott Catalogue USA: 331
unused; imprint, star and plate number 4980 in margin
1c Franklin horizontal imperf pair
Scott Catalogue USA: 331
unused; imperforate between variety resulting from booklet experiments;...
Scott Catalogue USA: 331
Certified plate proofs are the last printed proof of the plate before...
Scott Catalogue USA: 331
American Air Mail Catalog: 22
By April 10, 1912, the delivery of mail by air over longer distances was...
Scott Catalogue USA: 331
American Air Mail Catalog: Pioneer 1a
As commissioned, Glenn H. Curtiss (1878-1930) built a biplane to fly...
Scott Catalogue USA: 331
American Air Mail Catalog: 9a
The Fort Smith (Arkansas) Fall Aviation Meet was planned for November...
Scott Catalogue USA: 331
American Air Mail Catalog: 15b
Early in the twentieth century, Dominguez Ranch, Los Angeles, attracted...