Poros facing for the foundation of the north stair of the Stoa as originally planned at the north end of the Shop XVIII; ends of blocks chopped away in a small walled pit to the west of Shop XIX ... AMS Horizontal (normal) ... October 1950
Commercial Attalos II of Pergamon Conglomerate, Limestone, Pentelic Marble, Hymettian Marble Fully Restored ... Ca. 150 B.C.