White Horse Final is the popular name given to the first FA Cup Final played at Wembley in 1923 between Bolton Wanderers and West Ham United. The final was preceded by chaotic scenes as vast crowds surged into the stadium, far exceeding its official capacity of approximately 125,000. A crowd estimated at up to 300,000 gained entrance and the terraces overflowed, with the result that spectators found their way into the area around the pitch and even onto the playing area itself. Eventually mounted policemen were brought in to try to clear the crowds from the pitch, including PC George Scorey, who was mounted on a horse named "Billie" (some sources spell the name "Billy"). P.C. Scorey had not actually been on duty that day but answered a call for emergency assistance as the throng of spectators in the stadium grew. Billie the horse was actually grey, but appeared white in the primitive black and white newsreel footage of the era. Contrary to what is sometimes claimed, other horses were also involved, but the "white" horse, as the most visible in the news footage, became the defining image of the day.