Historic England has a listing for a sundial at Scampston.

SCAMPSTON SCAMPSTON HALL ESTATE Sundial approximately 50 metres south of Scampston Hall

Sundial. Early C19. Dial by Thomas Heath of London. Sandstone ashlar with copper dial and gnomon. Vase-shaped fluted pedestal on octagonal base, approximately 1.2 metres high. Pedestal decorated with a acanthus leaves, gadroons, key patterns and Vitruvian scrolls.

Old photos show it in position, it is not there now.