REMOVE

1. Manuscripts
2. Maps
3. Architecture
4. Ireland

WHAT

1. Electric lighting (6)
2. John Rylands Library (6)
3. Library buildings (5)
4. Lighting, Architectural a … (4)

WHERE

1. England: Greater Manchest … (6)
2. England: Manchester (2)

WHO

1. J.W. Singer & Sons Ltd (3)

WHEN

1. 21st Century CE (3)
2. 2007 (1)