Microscope. By Hart & Praz [Hartnack & Prazmowski], Paris See a <link href="http://www.mikroskop-museum.de/galerie_hartnack.htm">photograph and description</link> of the "Messingmikroskop of E. Hartnack um 1872" (see also <link href="http://www.musoptin.com/Hartnack_11186.html">here</link>) and numerous <link href="http://www.musoptin.com/mikro1.htm">other photographs</link> of Hartnack microscopes. Microscope. By Hart & Praz [Hartnack & Prazmowski], Paris

Dublin Core Export

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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:description>http://vlp.mpiwg-berlin.mpg.de/library/data/lit8140/index_html?pn=25&amp;ws=2.5&amp;mk=0.0492/0.3215&amp;wid=digi_7102
http://vlp.mpiwg-berlin.mpg.de/library/data/lit8140/index_html?pn=11&amp;ws=3.0&amp;mk=0.6433/0.7787&amp;wid=digi_8399
Seems to be M194.
See for photos and similar/equal instruments: 
http://www.mikroskop-museum.de/galerie_hartnack.htm (Messingmikroskop von E. Hartnack um 1872)
and
http://www.musoptin.com/mikro1.htm
and (Hartnack Microscope 1872):
http://www.musoptin.com/Hartnack_11186.html
"Hart and Praz" means "Hartnack &amp; Prazmowski". 
Page field changed to assumed MünsterbergID</dc:description>
  <dc:identifier>https://vlp-new.ur.de/images/img30180</dc:identifier>
  <dc:identifier>oai:vlp-new.ur.de:img30180</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>https://creativecommons.org/licenses/by-nc/4.0/</dc:rights>
  <dc:source>https://vlp-new.ur.de/records/lit38688</dc:source>
  <dc:subject>technology</dc:subject>
  <dc:title> Microscope. By Hart &amp; Praz [Hartnack &amp; Prazmowski], Paris  See a &lt;link href="http://www.mikroskop-museum.de/galerie_hartnack.htm"&gt;photograph and description&lt;/link&gt; of the "Messingmikroskop of E. Hartnack um 1872" (see also &lt;link href="http://www.musoptin.com/Hartnack_11186.html"&gt;here&lt;/link&gt;) and numerous  &lt;link href="http://www.musoptin.com/mikro1.htm"&gt;other photographs&lt;/link&gt; of Hartnack microscopes. Microscope. By Hart &amp; Praz [Hartnack &amp; Prazmowski], Paris</dc:title>
  <dc:type>photography b/w</dc:type>
</oai_dc:dc>