A chalk drawing of Lupule, one of two Hungarian sheep dogs Queen Victoria was given in 1843, seated to the right. There are faint sketches of the dog's head on the left. Inscribed on page below image:  'W. Keyl 1848' and 'Lupule / Transylvianian Sheep dog / sent by Count Alphonse Mensdorff in 1843'.

Friedrich Wilhelm Keyl was the only pupil of the animal painter Edwin Landseer, who was one of Queen Victoria and Prince Albert's favoured artists. Landseer recommended Keyl to his royal patrons, and Keyl executed many oil paintings and smaller-scale watercolours and chalk drawings of royal pets and animals.