Aberlemno Cross Slab - central device of the famous 8th century Pictish cross slab in Aberlemno Kirk yard in the Angus region of Scotland. It consists of intricate Celtic interlace which includes 3 Celtic knots in the shaft &amp; a center device of 7 triple spirals. While the slab from which this cross is taken includes zoomorphic designs, crosses designed by the Picts almost never included any figurative sculpture although it is not known why this particular artistic convention existed.