Airmails
BALDWIN, N.C.
British Air Mails A Chronology of the Air Posts of Great Britain and Ireland
"The Aero Field" Hanbook No. 4
BALDWIN, N.C.
British Air Mails 1784 - 1946 - A Chronology and Priced Catalogue of Aviation and Air Mail Souvenirs flown within and from Great Britain and Ireland
"The Aero Field" Hanbook No. 8
The second edition issued in 1947, expanding and updating the first edition of 1935. The first edition was issued as Handbook No. 4 and this revsied edition as Handbook No. 8. Illustrations throughout.
da SILVEIRA, Cap. F. Lemos
Catálogo de Marcas Aéreas / Catalog of Aerial Cachets
1968 - 1990