In the Window of the upstairs gallery is a Silicon Test Disk,- an object printed asa testfor producing microchips for computers- functionless- it is a blueprint for a machine learning it's craftThe Southern Reid Gallery is hidden on a mews just off Dean Street, Soho. It provides a tasteful white backdrop to London artists Harry Lawson's hand made exhibit Walking with a Ghost. The exhibition is a collection of crafted furniture, coloured stone and the test disk.