Fra Filippo Lippi; Saint Lawrence Enthroned with Saints and Donors; Fra Filippo Lippi (Italian; Florence ca. 1406-1469 Spoleto); 1440s; Tempera on wood; gold ground; Central panel (a); overall; with arched top and added strips; 47 3/4 x 45 1/2 in. (121.3 x 115.6 cm); right panel (b) 28 1/2 x 15 3/8 in. (72.4 x 39.1 cm); left panel (c) 28 1/2 x 15 1/2 in. (72.4 x 39.4 cm) [panels substantially altered in size and shape; Paintings