Alto saxophone. Nominal pitch: E♭.

https://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~54488~104794/full/,150/0/default.jpghttps://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~26813~104795/full/,150/0/default.jpg