Is “Lyon” in the public domain?

Yes. “Lyon” is public domain and released under CC0, so it is free to download and reuse for any purpose, including commercially, with no permission needed.

Can I use “Lyon” commercially for free?

Yes. As a CC0 public-domain work it can be used commercially, modified and redistributed with no fee and no attribution required.

“Lyon” by Edouard Baldus (ca. 1861) is a public-domain (CC0) artwork, free to view, download and reuse for any purpose. It is catalogued from the open collection of The Metropolitan Museum of Art.

Lyon

Edouard Baldus

Title	Lyon
Artist	Edouard Baldus
Date	ca. 1861 19th century
Medium	Albumen silver print from glass negative?
Classification	Photographs
Holding institution	The Metropolitan Museum of Art
Credit line	Gilman Collection, Gift of The Howard Gilman Foundation, 2005
Rights	Public domain (CC0)