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:
Rocket projectile designed by W. T. Unge and Alfred Nobel late TM Tekniska museet Stockholm Sweden DSC. en Exhibit in the Tekniska museet Stockholm Sweden This work is old enough so that it is in the public domain Photography was permitted in the museum without restriction own Daderot other versions cczero Rockets in the Tekniska