Watch List notes:

Adam Duncan, 1st Viscount Duncan (1731–1804), the victor of Camperdown, portraits (2), cast in iron, after John de Vaere's portrait for Wedgwood, uniformed bust l., wearing periwig, A.L.V. [Admiral Lord Viscount] DUNCAN above 99.5 x 80mm., pierced, through D of DUNCAN, very fine; a black basalt plaquette, probably Leeds, uniformed bust three-quarters l., after the portrait by John Hoppner, 94.5 x 75.5mm., small chip to edge (not affecting the portrait), very fine (2)
The Hoppner portrait now in the National Portrait Gallery.
(Estimate: 80-120 GBP)