Portrait of alexandra of denmark. The dog is thought to be a japanese chin called punch. Object Type: painting. Genre: portrait. Date: 1920. Dimensions: height: 128.3 cm (50.5 in) ; width: 102.9 cm (40.5 in). Medium: oil on canvas. Depicted People: Alexandra of Denmark. Collection: National Portrait Gallery. Alexandra of Denmark by Sir (Samuel) Luke Fildes