Armillary sphere with astronomical clock made by <a href="https://en.wikipedia.org/wiki/Jost_B%C3%BCrgi" class="extiw" title="en:Jost Bürgi">Jost Bürgi</a> and <a href="https://en.wikipedia.org/wiki/Anton_Eisenhoit" class="extiw" title="en:Anton Eisenhoit">Antonius Eisenhoit</a>, Kassel, 1585. Constructed from bronze, steel and ebony. The sphere was looted from Prague by Swedish forces in 1648 and is currently the property of the <a href="https://en.wikipedia.org/wiki/Nordiska_Museet" class="extiw" title="en:Nordiska Museet">Nordiska Museet</a> in <a href="//commons.wikimedia.org/wiki/Stockholm" title="Stockholm">Stockholm</a>. Note says: "<a href="https://en.wikipedia.org/wiki/Johannes_Kepler" class="extiw" title="en:Johannes Kepler">Johannes Kepler</a> studied the stars with the help of this armillary sphere".
physical object: Jost Bürgi, Antonius Eisenhoit<br>Photograph: <a href="//commons.wikimedia.org/w/index.php?title=User:Chris_Bainbridge&amp;action=edit&amp;redlink=1" class="new" title="User:Chris Bainbridge (page does not exist)">Chris Bainbridge</a>
physical object: 1585<br>Photograph: 4 March 2009
Photograph: <span class="int-own-work" lang="en">Own work</span>