Question 1

Is “staircase model” in the public domain?

Accepted Answer

Yes. “staircase model” 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 “staircase model” 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 “staircase model” 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	staircase model
Date	ca. 1820–40 19th century
Medium	pear (wood), walnut
Classification	models and prototypes
Origin	France France
Holding institution	Smithsonian Open Access
Credit line	Gift of Eugene V. and Clare E. Thaw
Rights	Public domain (CC0)

staircase model

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