| Description | The file includes notes, sketches and a memo on foyer lighting in the National Theatre, including methods of control, an analysis of circuits, a schedule of dimmers and a 'Division of Theatre Projects Front of House Lighting'. Original card folder had '[?I&Y]/[1&7] Patent.' written on the front cover, 'NT Foyer Ltg. - RGB Notes & Papers-' on the right edge, and 'Angenieux 8-437' on the back ('8/436' was written on the inside front cover). |