These images by the world's first rock-climbing photographers show the pioneers of the sport scaling some of Britain's highest peaks. George and Ashley Abraham were brothers, climbers and photographers living in the Lake District at the start of the 20th century. Here: a collotype plate showing an ascent of the eastern face of Tryfaen from Ashley & George Abraham's Rock-Climbing in Wales book, 1906.Picture: SWNS

Credit : SWNS