https://s3.amazonaws.com/omeka-net/36717/archive/files/2a88162f49ca559489d00ebe59d2d4d7.JPG?AWSAccessKeyId=AKIAI3ATG3OSQLO5HGKA&Expires=1551713315&Signature=zxSYDMqVMh9p%2FiIkZDqr269QgBM%3D

Media

Part of "Cary-Gould type" Pocket Microscope