street organ
street organ is a mechanical organ.
Overview
Mechanical organ used by organ grinders.
In detail
street organ is a mechanical organ.
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
“Street organ”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q1256576: street organ
Consult the source