Martyrdom of St. Lawrence, 1571, Engraving, Sheet: 19 13/16 x 13 3/4 in. (50. 3 x 34. 9 cm), Prints, Cornelis Cort (Netherlandish, Hoorn ca. 1533?1578 Rome), After Titian (Tiziano Vecellio) (Italian, Pieve di Cadore ca. 1485/90? ?1576 Venice), One of the most famed printmakers of his day, Cornelis Cort was admired for his ability to translate tonal qualities into a black and white engraving. Cort accomplished this in part through an important technical innovation: It is the nature of an engraved line, cut as it is with a tool (the burin) whose cutting edge comes to a sharp triangular point, to begin as a point, swell almost imperceptibly at the center, and narrow to a point again at the end