https://s3.amazonaws.com/omeka-net/36717/archive/files/536d05d260415269a290fbae36d7afeb.JPG?AWSAccessKeyId=AKIAI3ATG3OSQLO5HGKA&Expires=1551713315&Signature=%2FN7OPuG6zZ%2F7P3lznWaHdYC6BFI%3D

Media

Part of "Cary-Gould type" Pocket Microscope