STAUFFER, David. American Engravers Upon Copper and Steel. New York: Grolier club, 1907. Two volumes. xxi, , 391,x,566,pp. plus illustrations. Half title in each volume. Half tan cloth and paper boards, black gilt morocco labels. Limited to 350 sets. Very good. A primary reference set in visual Americana. Stauffer supplies brief biographies for scores of artists along with a check-list of nearly 3500 engravings (with index). An essential component for any Americana reference library.