Cased LZ 126 Medal

60 mms in diametre large, and 3 mms thick, Bronze-Medal 1924 made by Stempelschneider "Mayer & Wilhelm", in a award case from "Lehmann & Wundonborg,Hannover", about the America-travel/crossing, of Luftschiff Zeppelin LZ 126../This so-called "America-Zeppelin" was in use of the US-NAVY..!! c attached documentation in German