United States 1907/36 Zeppelin Cover Selection, 66 covers beginning with four early postcards, followed by better covers including Sieger 20N, EUR85; Sieger 20N April 20 date, EUR200; Sieger 20T with block of four 614, EUR100; Sieger 20U, EUR150, Sieger 431A, Sieger 442A, three 1932 Akron flight covers, and more, generally very fine, a scarce and interesting group, viewing recommended