https://s3.amazonaws.com/omeka-net/36717/archive/files/9c684654dc01738965c88988818242fc.JPG?AWSAccessKeyId=AKIAI3ATG3OSQLO5HGKA&Expires=1551713315&Signature=CK8VP6jxzp%2BrN9GR6BbCVFG%2BTy8%3D

Media

Part of "Cary-Gould type" Pocket Microscope