Derelict Holt House, off Abbeydale Road, Millhouses

Telephone exchange, Eldon House, Charter Row

Hallam IDF [intermediate distribution frame], Telephone exchange, Eldon House, Charter Row

Hallam CSSI [Console Subsystem Interface] equipment, Telephone exchange, 3rd floor, Eldon House, Charter Row

Transit exchange equipment, Telephone exchange, 3rd floor, Eldon House, Charter Row

Telephone exchange, 3rd floor, Eldon House, Charter Row

Junction tandem, Telephone exchange, 3rd floor, Eldon House, Charter Row

Telephone exchange, 3rd floor, Eldon House, Charter Row

Hallam end, Telephone exchange, 3rd floor, Eldon House, Charter Row

The Auto, Telephone exchange, 2nd floor, Eldon House, Charter Row