This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Graf Zeppelin LZ Querschnitt LABlitz. de Graf Zeppelin LZ Querschnitt Meyers BlitzLexikon Leipzig it Graf Zeppelin LZ Schema della struttura interna del Graf Zeppelin LZ In azzurro evidenziata la sacca dell'idrogeno mentre in verde il Blaugas che serviva per alimentare motori valvola automatica di sfogo passarella assiale gondola