Alpine Zither, also known as a "harp zither".
<p>Original photographer unknown.  the MET has placed the file in the public domain.
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Rotation and contrast enhancement carried out by myself, Dr H.
2017-11-09
<p>Metropolitan Museum of Art:  <a rel="nofollow" class="external free" href="https://www.metmuseum.org/art/collection/search/504520">https://www.metmuseum.org/art/collection/search/504520</a>
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File is in the public domain.