Description
Berezowski, A., Handbook of Airmail Customers, Catalogue of all stamps and cancellations of the airmail (Zeppelin-Posten), 1930, Sieger reprint from 1969, 95 pages with illustrations, #9971
Berezowski, A., Handbook of Airmail Customers, Catalogue of all stamps and cancellations of the airmail (Zeppelin-Posten), 1930, Sieger reprint from 1969, 95 pages with illustrations, #9971