Lot: 239
John Duggan Graf Zeppelin Flights to England, 1998, softback, 109pp; The Siemens-Schuckert Airship, 2002, softback, 39pp; and 4 pamphlets on airmails. (6)
Lot: 254
American Airmail Catalogue 1998-2004, 6th Edition, 3 volume set, published by the American Airmail Society, quarto, hardbacks, 1590pp, a mine of information.