This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionPES100.jpg
Deutsch: Stromaggregat PES 100, die beiden Rollen am Heck dienen der Aufnahme von Zuleitungen zu den Fahrzeugen der Raketenbatterie, der Anschluss erfolgt in der offenen Klappe links
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the licence, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible licence as the original.