Sargent's Patent Bicycle Handle Co.
This turn of the century British company created a detachable set of handlebars. They contained pump, oil can, cleaner, and a combined wrench with carrier. Half the handlebar could be easily detached or refixed by the rider by one turn of the wrist. This advertisement appeared in The Hub magazine on 7 August 1897. The image come from the library of the Cyclists' Touring Club, held in the National Cycle Archive.