@article{DA,
      recid = {4757},
      author = {Chambers, Inskeep & Co. and F.A. Hardy & Co. and Columbian  Bifocal Company},
      title = {Oculist's trial set},
      address = {1920},
      number = {DA},
      abstract = {Digital photograph of a set of trial lenses in a black  leather case. The case has been set on a gray counter, and  opened to show the lenses in the interior tray. An  adjustable set of frames can be seen in the front portion  of the case, and the manufacturers name can be seen on a  ribbon in the upper right corner of the case lid. A ruler  has been set in front of the case for size comparison.},
      url = {http://digitalcollections.ohsu.edu/record/4757},
      doi = {https://doi.org/10.6083/M4639N57},
}