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:
Vliegveld Waalhaven . nl nl Vliegveld Waalhaven in nl Rotterdam met nl Graf Zeppelin Foto van juni br original text juni Hanhil nl PDOUD author unknown picture dates from probably published in newspaper in PDold original upload log nl GijsvdL CommonsHelper page nl VliegveldWaalhaven Hanhil bytes no Vliegveld Waalhaven