Tuba. Nominal pitch: 16-ft C.

https://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~36720~103640/full/,150/0/default.jpghttps://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~33132~103642/full/,150/0/default.jpg