@article{DA,
      author = {Ohio Chemical Co.},
      url = {http://digitalcollections.ohsu.edu/record/4659},
      title = {Oxygen bottle},
      abstract = {Digital photograph of a green oxygen bottle, set on a gray  counter. A ruler has been placed before it on the counter  for size comparison.},
      number = {DA},
      doi = {https://doi.org/10.6083/M43T9FMW},
      recid = {4659},
      address = {1920},
}