https://s3.amazonaws.com/omeka-net/36717/archive/files/daa03ddbc25884a062b18d2899330886.JPG?AWSAccessKeyId=AKIAI3ATG3OSQLO5HGKA&Expires=1551713319&Signature=9ijSgV%2FvkanIlIEcGZ6WZHAmPHI%3D

Media

Part of Charles Baker "Ross Type" Microscope