tintinnabulum
tintinnabulum is an altar bell or insignia.
Overview
Bell, placed in a basilica.
In detail
Its recorded use is minor basilica.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Tintinnabulum”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q262991: tintinnabulum
Consult the source