Question 1

Is “Door knocker” in the public domain?

Accepted Answer

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

Question 2

Where is “Door knocker” from?

Accepted Answer

It is catalogued from the open collection of Smithsonian Open Access and is free to reuse under CC0.

Question 3

Can I use “Door knocker” commercially for free?

Accepted Answer

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

Title	Door knocker
Date	1550–1650 16th century
Medium	Bronze
Classification	metalwork
Origin	Italy Italy
Holding institution	Smithsonian Open Access
Credit line	Gift of the Estate of David Wolfe Bishop
Rights	Public domain (CC0)

Door knocker

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