pocket trumpet
pocket trumpet is a trumpet.
Overview
Compact size b-flat trumpet, with the same playing range as the regular trumpet.
In detail
pocket trumpet is a trumpet.
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
“Pocket trumpet”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q2143787: pocket trumpet
Consult the source