Derby Winner 1855. This is one of the oldest pictures of a Thoroughbred ever taken. The horse is Wild Dayrell, born 1852. This picture was taken when he was a 3 year old in 1855. He is only six generations from Herod and eight from the Godolphin Arabian. Wild Dayrell was a big, powerful brown horse standing 16.1 hands high and described as "one of the finest specimens of a racehorse" ever seen.
GSB Vol VIII, p.132