Relations - Ringing The Changes

Discusses the 'Trinitas' symbol found in 13th century manuscripts, which depicts three rings locked together. Asks whether four rings can be linked in the same manner.

Related films

Sources

  1. A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, year, creator, length, format, description
  2. 16mm Filmography (legacy record) — sound, catalog record