A double keyboard has twice the amount of keys, with the capitals above and lowercase below. Both claimed to be the fastest way to type. The challenge took place in Cincinnati in July 1888 and attracted worldwide attention. The winner was Mr. Gurin who beat Mr. Tubb with ease and at the same time introduced the method that would be used by typists in various forms from then on. The Bar-lock has a double keyboard with 84 keys.
Capitals are above and lowercase below.
Though this argument had been settled it did not stop the competitions. Many typewriter manufacturers saw the potential of selling their products by creating typing challenges and the craze continued. However, one person and one type of machine prevailed. E. Smith continually won the speed-typing competition on an Underwood machine until the public lost interest and the contests stopped.