Sassanian Stamp Seal with Knot Motif 3rd-7th century A.D. An agate cone-shaped stamp seal engraved to the underside with a knot pattern to the centre, Pahlavi script to the edge; accompanied by a museum-quality impression. See Gyselen, R., Sasanian Seals and Sealings in the A. Saeedi Collection, Acta Iranica, Herent, 2007, for discussion. 4.59 grams, 19 mm (3/4 in.). Acquired 1980s. Mayfair gallery, London, UK. Property of a North London lady; gifted from her father's collection.