1930, South America flight, bolivanische post, Rio de Janeiro to Friedrichshafen, cover with two values 1, 50 Bol. Zeppelin on 15 C. and airmail additional franking from LA PAZ 14. MAYO. American inventory stamp type I and on the back boliv. Inventory stamp 1 as well red box cancel of 2 lines "CORREO AEREO COCHABAMBA and red framed four line cancel "ECONOMICE TIEMPO. . . . L. A. B. " via Friedrichshafen to Lyon with arrival postmark, superb, in this combination rare!