https://s3.amazonaws.com/omeka-net/36717/archive/files/63b638b423001e0b5a53d56de5adea42.JPG?AWSAccessKeyId=AKIAI3ATG3OSQLO5HGKA&Expires=1551713315&Signature=MijQIiIJGh%2BhWmQ%2BzDFckKF43GU%3D

Media

Part of "Cary-Gould type" Pocket Microscope