@misc{indiciaeda4e86a36fe8,
  title = {Correspondence : Gilbert (Benjamin) and Engelmann (George), 1867-1870 — Illustration, Dec 12 / 1867 [2] verso},
  year = {1867},
  url = {https://www.biodiversitylibrary.org/page/43398494},
  note = {Source identifier: page-43398494}
}