@misc{indiciaea68d6ba4b7d2,
  title = {The sciopticon manual, explaining lantern projection in general, and the sciopticon apparatus in paricular — Illustration, Page 160},
  year = {1877},
  url = {https://www.biodiversitylibrary.org/page/19502801},
  note = {Source identifier: page-19502801}
}