What is a Solari board?AnswerA Solari board is a mechanical display with flip-flapping panels, named after Solari di Udine, the Italian company that produced them. Stations used them for departure information, each update giving that recognisable clattering sound.SourcesThe Solari board, the mechanical flip-flap station display (snippet, the answer above is its summary)https://willem.com/en/2025-08-11_willemstagram/ (full article)