This is a vintage patent drawing of a mechanical vehicle, likely an early bicycle or velocipede. The drawing is done in a simple, linear style with black lines on a pale yellow background. The vehicle has two large, spoked wheels connected by a series of gears. The gears appear to be the primary means of propulsion. A person is seated on a simple seat positioned between the wheels, operating the vehicle with their hands on handles and feet on pedals. The frame of the vehicle is constructed of thin, straight lines, creating a minimalist design. Below the drawing, there is text that reads 'A. Julien. French patent. June 30, 1830.' This indicates that the drawing is a patent application for a vehicle invented by A. Julien in France in 1830. The overall impression is that of a historical document showcasing an early attempt at personal transportation.