This is a Competitor's Badge from the 1908 Olympic Games in London, England won by Thomas H. Raddall who later commanded the 8th Battalion Winnipeg Rifles in 1918.
Thomas was born in Cornwall, England in 1877. In 1891 he enlisted in the Royal Marines as a drummer and became a rifleman in the Royal Marine Light Infantry in 1895. He then transferred to the British Army's School of Musketry as an instructor in small arms. An expert marksman, he was a member of army rifle teams in competitions and a member of the British rifle team at the 1908 Olympic Games.
In 1913, he transferred to the Canadian Army as an instructor and then joined the 8th Battalion in 1914 as an officer, serving in important battles such as The Somme, Passchendaele and Vimy Ridge. Lieutenant Colonel Raddall was awarded the Distinguished Service Order in 1918.