Washington Crossing the Delaware Engraving by Paul Girardet

Old Engraving of, Washington Crossing the Delaware, engraved by Paul Girardet after Emanuel Leutze published by Fishel, Adler Schwartz. In period correct frame. printed inscription lower margin: "WASHINGTON CROSSING THE DELAWARE / NEW YORK _ Published by Fishel, Adler Schwartz." Directly under image on right: "PAINTED BY E. LEUTZE" and on left: "ENGRAVED BY PAUL GIRARDET." 20" x 30". Some water stains on bottom border with moderate foxing. Any idea of age or number printed?