Youths progressive recorder Historic map, Library of Congress

Copyright design drawing shows the Youths progressive recorder, a mechanical handwriting copying machine.
Stamped: Copyright library.
Inscribed upper right: This map is a design and the title of the writing to be performed by it, is to be known as the work of the Youths progressive recorder - tiled in the office of the Supreme Court in the District of Columbia Novr. 28 / 1868 by Wm. Webster.
Copyright deposit.