8th May 1948: Tug Wilson demonstrating tic-tac, a sign language used to convey information between race course bookmakers. This gesture means 'lay to lose' which means that one bookie wants to bet with another to spread the chances of losing money. Original Publication: Picture Post - 4552 - Money Talks Through Tic-Tac - pub. 1948 (Photo by Bert Hardy/Picture Post/Hulton Archive/Getty Images)
