Whistlejacket is an oil-on-canvas painting from about 1762 showing the marquess of rockingham's racehorse, rearing up against a blank background. Edited by uploader from national gallery scan to add lost "brownspace" to the left and right of the painting. Object Type: painting. Genre: animal art. Date: circa 1762. Dimensions: height: 292 cm (114.9 in); width: 246.4 cm (97 in). Medium: oil on canvas. Collection: National Gallery. Whistlejacket by George Stubbs edit
