Design for Door Knocker, 16th century, Pen and brown ink, with brush and brown washes, with graphite underdrawing., 9 3/4 x 7 13/16 in. (24.7 x 19.8 cm.), Attributed to ?tienne Delaune (French, Orl?ans 1518/19?1583 Strasbourg), Design for a door knoc