{
  "title": "Field-guide card: Kaleidoscope",
  "description": "Field-guide card for the kaleidoscope: name, classification, generating rule, diagram and how it was checked.",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "creator": "Drawn Mathematics",
  "page": "https://drawnmathematics.com/symmetry/kaleidoscope/",
  "derived_from": [
    "Values from the angle table on this page (kaleidoscope-angles.csv); name and rule as noted in the source column"
  ],
  "method": "Compiled by Drawn Mathematics from the data listed",
  "data_credit": [
    "Computed for this page; name and the angle rule as given in David Brewster, The Kaleidoscope, 3rd ed. (London, 1870)"
  ]
}