Samuel Hall's Son New York NY bicycle wrenches. The wrench on the Left is the Bicycle Wrench, according to Cope's was released in 1896 and was only offered in the 6 inch size. The wrench is marked with the March 13, 1894 patent date. The wrench on the Right is also marked with the early patent date of March 13, 1894 but was made in several sizes, this one is also the 6 inch size. This style was manufactured prior to the bicycle only wrench. They were marketed as nut and pipe wrenches. Charles Hall was awarded several wrench patents in 1894,and additional patents in 1895 and 1897. Both wrenches measure 5 1/2 inches long when closed.