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.
Kartashov Valentin Antoninovich. en Valentin Kartashov Russian scientist construction engineer honorary builder of Russian Federation own Numulunj pilgae Scientists from Russia unidentified field
Page 2023 Free-images.com. All images are Public Domain