26-inch gong drum.

https://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~27828~102782/full/,150/0/default.jpghttps://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~78221~182717/full/,150/0/default.jpg