Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 126,752 pages of information and 199,764 images on early companies, their products and the people who designed and built them.
Willard Sawyer of Dover was an early pioneer of human-powered vehicles, the forerunner of the bicycle. In the 1840s he began to produce four-wheeled vehicles wher the rider powered the rear wheels by moving foot treadles back and forth.
In 1851 he rode one to the 1851 Great Exhibition. Later he sent a model to New York.
He published a catalogue in 1863 that showed models carrying up to six people. A sample is in the Canada Science and Technology Museum in Ottawa