https://s3.amazonaws.com/omeka-net/36717/archive/files/87fae31c8dad2bf73c531e7587d2bde9.JPG?AWSAccessKeyId=AKIAI3ATG3OSQLO5HGKA&Expires=1551713313&Signature=CngC5HzHhQtgJ0KMPx0s2%2BnVuj8%3D

Media

Part of Negretti & Zambra Compound Microscope