Tholos Trench E, from northeast as left on 7 June 1937. 1 is Base E, 2 is west curb of early Road Drain, 3 is early house walls, 4 is porch-cistern channel ... AMS Horizontal (normal) ... Tholos Trench E, from northeast as left on 7 June 1937. 1 is Base E, 2 is west curb of early Road Drain, 3 is early house walls, 4 is porch-cistern channel.