Aperture card and digital copies of housing plans Barley Mow Estate, Berner Estate, Three Colt Street, Everard House, Harkness House, Oast Court. Format: Aperture cards Berner Estate: Everard House. Format: Aperture card scans on 2 digital CDs Berner Estate: Berner House, Deltafield House, and Harkness House. Format: Aperture card scans on 3 digital CDs CD 'London Borough of Tower Hamlets' containing: Aperture Cards of Berner Estate. 1 digital CD CD 'Master CD 001': containing Aperture card scans. Scanned in 2006. 1 digital CD Barley Mow Estate. Format: digital items on USB Stick 1970s-1990s