Mrs surtees point out that the ambiguity over the date may signify the years in which elizabeth siddal's influence was paramount. (see references). Object Type: painting. Date: 1850. Dimensions: height: 33.4 cm (13.1 in); width: 24.6 cm (9.6 in). Medium: linen, watercolor and graphite on paper. Collection: Fitzwilliam Museum. Dante Gabriel Rossetti - Elizabeth Siddal (1850-65)