<?xml version='1.0' encoding='utf-8'?> <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=14&ws=2.5&mk=0.0655/0.7042&wid=digi_2844 http://vlp.mpiwg-berlin.mpg.de/library/data/lit8140/index_html?pn=11&ws=3.0&mk=0.7995/0.5441&wid=digi_8399 Seems to be M99: "Micrometric shutter for studying minute fields of color. After Münsterberg. By Elbs, Freiburg. $42." See (Elbs fig. No. 10) http://vlp.mpiwg-berlin.mpg.de/library/data/lit13692/index_html?pn=4&ws=1.5 and description "Mikrometerblende": http://vlp.mpiwg-berlin.mpg.de/library/data/lit13692/index_html?pn=1&ws=1.5</dc:description> <dc:identifier>https://vlp-new.ur.de/images/img30219</dc:identifier> <dc:identifier>oai:vlp-new.ur.de:img30219</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> Micrometric shutter for studying minute fields of color. After Münsterberg. By Elbs, Freiburg See a color photograph of this device in the <link href='http://dssmhi1.fas.harvard.edu/emuseumdev/code/emuseum.asp?rawsearch=Number%2F%2C%2Fis%2F%2C%2FWJ0038%2F%2C%2F0%2F%2C%2F0'>Harvard Collection of Historical Scientific Instruments</link>. Micrometric shutter for studying minute fields of color. After Münsterberg. By Elbs, Freiburg</dc:title> <dc:type>photography b/w</dc:type> </oai_dc:dc>