Is “Tonometer” in the public domain?

Yes. “Tonometer” 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 “Tonometer” 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.

“Tonometer” (19th century) 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.

Tonometer

Title	Tonometer
Date	19th century 19th century
Medium	Wood and various materials
Classification	Chordophone-Zither-struck-dulcimer
Origin	European European
Holding institution	The Metropolitan Museum of Art
Credit line	The Crosby Brown Collection of Musical Instruments, 1889
Rights	Public domain (CC0)

About this artwork

“Tonometer” is a work of unattributed authorship, dated 19th century. It is executed in wood and various materials and classified as chordophone-zither-struck-dulcimer. This work is in the public domain (CC0), so the image may be downloaded and reused for any purpose without permission (see the licence note below).

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