The Isolator. A helmet invented in 1925 that encourages focus and concentration. pic.twitter.com/95CiSj9XrS— History In Pictures (@HistoryInPics) 22 March 2016
The Isolator. A helmet invented in 1925 that encourages focus and concentration. pic.twitter.com/95CiSj9XrS— History In Pictures (@HistoryInPics) 22 March 2016
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