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.
Porta del filarete . FILARETE Bronze door Bronze Basilica di San Pietro Vatican www wga hu see filename or category PDold Filarete Doors Images from Web Gallery of Art
Page 2023 Free-images.com. All images are Public Domain