History: Drills - Boy Scouts practicing wall scaling. New York, 1917 [2851 x 1549]

https://c1.staticflickr.com/5/4563/27094504539_05e7d3529d_o.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/a70q38/drills_boy_scouts_practicing_wall_scaling_new/?utm_source=ifttt