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.
Karazin Metro . Illustrations to the Moscow Metro project of object history exhibition history credit line accession number mosmetro ru php idpage PDold Historical designs of the Moscow Metro Nikolay Karazin
Page 2023 Free-images.com. All images are Public Domain