
Hereford Mappa Mundi
c. 1300 (dated on palaeographic and art-historical grounds to between c. 1290 and c. 1310; the oak backboard is dendrochronologically dated to trees felled around 1295-1300) - Iron gall ink, pigment (red, gold, blue and green) and gold leaf on a single sheet of vellum, mounted since the Middle Ages on an oak backboard