Is “[Button]” in the public domain?

Yes. “[Button]” 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 “[Button]” 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.

“[Button]” by Unknown (1840s–50s) 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.

[Button]

Unknown

Title	[Button]
Artist	Unknown
Date	1840s–50s 19th century
Medium	Daguerreotype
Classification	Photographs
Holding institution	The Metropolitan Museum of Art
Credit line	Gilman Collection, Purchase, Joyce F. Menschel Gift, 2005
Rights	Public domain (CC0)