https://s3.amazonaws.com/omeka-net/36717/archive/files/585aaea47bea2cb3b7b4fc02bf801998.JPG?AWSAccessKeyId=AKIAI3ATG3OSQLO5HGKA&Expires=1551713315&Signature=y%2F%2Fwjr%2BcHhGJOPfQHa3OVy8euFo%3D

Media

Part of "Cary-Gould type" Pocket Microscope