References are mentioned as much as possible on each page.

See also my pages on:

• Correspondence
• Credits
• Literature – > before 1990
• Literature -> after 1990
• Mysteries
• Personalities
• Questions
• Diecastmodels
• Trivia
• YouTube Animations

Old (not working) references:

[Source: http://www.museodellavalledellidice.it/allegaticlasse/188.pdf]
(not working link but crawled and captured by the internet archive: https://web.archive.org/web/20220525081614/http://www.museodellavalledellidice.it/allegaticlasse/188.pdf)