Oktavin, nominal pitch: B♭

https://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~78628~186761/full/,150/0/default.jpghttps://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~78415~186762/full/,150/0/default.jpg