text at bottom on stone:
Lithogd. from the original Design of Robt. Mills Archt. / by Chs. Fenderich Washington / Design / of the National / Washington Monument / Entered according to act of Congress in the year 1846 by Chs. Fenderich in the clerks office of Dist. Court of D.C. / Expressly engraved for the Wasington Monument Society / Lithogry. of E Weber & Co. Balto.
Corcoran Gallery of Art, Washington, DC; acquired 2015 by the National Gallery of Art