This is a vintage technical drawing of a velocipede, an early type of bicycle, patented by J.J. White of Philadelphia in 1869. The drawing is a detailed diagram of the machine's mechanical components. The velocipede features two large vertical frames (labeled 'A') connected by a network of rods, gears, and levers. A seat is positioned between the frames, and a person is depicted seated on it, wearing a hat. The rider's feet are positioned on footrests, and their hands are on handlebars. The machine is powered by a complex system of gears and cranks. Two large wheels are connected to the frame, and a series of gears and levers transfer the rider's foot power to these wheels. The drawing includes numerous labels and letters indicating the different parts of the machine. The overall style of the drawing is typical of 19th-century technical illustrations, with precise lines and detailed shading. The drawing is a valuable historical document, providing insight into the early development of bicycle technology.