Slazenger balls 1979

Since 1902 and till present the official balls of the Wimbledon tournament have been the balls of the Slazenger company (note‒ The Slazenger company was founded in 1881 by the brothers Ralph and Albert Slazenger. In 1940 F.H.Ayers was bought by the owners of Slazenger). Balls “Slazenger” were played at the Olympic tournaments in 1908 and 2012. In 1999, the company introduced the “Ultra Vis” ball, which was 17% brighter than other balls