EGYPTIAN POLISHED STONE JAR. Old Kingdom, Ca. 2900 - 2600 BC. A jar carved from stone with a vertically oriented ovoid body tapering to a circular, flat base. The prominent collar rim overhangs the shoulder and is separated by a shallow groove. For similar see: G. A. Hassaan, Mechanical Engineering in Ancient Egypt, Part 49: Alabaster Products (Predynastic to Old Kingdom Periods), International Journal of Emerging Engineering Research and Technology V5. I4. 2017, Fig. 13. Size: 105mm x 65mm; Weight: 520g Provenance: London collection; Ex. Mayfair collection, acquired from an Ancient Art gallery; formerly acquired on the London art market pre-2000.