Cornet. Nominal pitch: B♭ etc.

https://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~76914~184162/full/150,/0/default.jpghttps://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~78503~184160/full/150,/0/default.jpg