1913 Epsom Derby stirrup. Davison was knocked to the ground; some reports say she was kicked in the head by Anmer, but the surgeon who operated on Davison stated that "I could find no trace of her having been kicked by a horse". The event was captured on three news cameras. Davison's purpose in attending the Derby and walking onto the course is unclear. She did not discuss her plans with anyone or leave a note. Several theories have been suggested, including that she intended to cross the track, believing that all horses had passed; that she wanted to pull down the King's
Emily Davison course; this was put up for auction and, as at 2017, it hangs in the Houses of Parliament. Michael Tanner, the horse-racing historian and author of a history of the 1913 Derby, doubts the authenticity of the item. Sotheby's, the auction house who sold it, describe it as a sash that was "reputed" to have been worn by Davison. The seller stated that her father, Richard Pittway Burton, was the Clerk of the Course at Epsom; Tanner's search of records shows Burton was listed as a dock labourer two weeks prior to the Derby. The official Clerk of the Course