Lot 30268 – Air Post: 1929-36 The Maxwell exhibition collection of mint airmails written up and presented on pages in a binder

Air Post: 1929-36 The Maxwell exhibition collection of mint airmails written up and presented on pages in a binder with comprehensive mint coverage of the various overprinted sets including (in many cases), quantities printed and with many listed (and some unlisted) varieties. Of note, 1931 C9-C13, C10 with variety « large P.A.A. » (only 6 can exist) and C9a « 1391 » variety (4 printed), each signed Kessler, 1932 35c on 50c C27a « Valc » error (7 printed) and C30a (each with A.P.S. cert). The 1932 overprints C32-C39 varieties incl. the unique and only intact sheets of the 3c C34ab with overprinted inverted and imperf between; (cert A.P.S.) and the 32c on 50c C45d the with imperf between. Also included, 1935 C135; (cert A.P.S.) and plenty more varieties, some with certs etc. Running throughout are covers, with some first flights incl. 1929 Panama to Nicaragua signed by the 2 pilots and 1930 Lindbergh Puerto Cazebas to Miami. Built by one of foremost philatelists of Nicaraguan material (and publisher of the famous handbook), this superb collection presents a great opportunity to acquire some unique and many other very scarce items.