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.
LvivJnos Bolyai. own Mcowkin Cczero Plaques to Jnos Bolyai Main building of Lviv University Commemorative plaques in Lviv Lystopadovoho Chynu Street Reliefs in Lviv Sculptures of mathematicians
Page 2023 Free-images.com. All images are Public Domain