Double manual harpischord-organ.

https://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~34780~103889/full/,150/0/default.jpghttps://images.is.ed.ac.uk/luna/servlet/iiif/UoEart~2~2~78776~185158/full/150,/0/default.jpg