mechanical organ
mechanical organ is an organ.
Also recorded as player organ.
Overview
Organ that is self-playing, rather than played by a musician.
In detail
mechanical organ is an 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
“Mechanical organ”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q12286601: mechanical organ
Consult the source