| Description | The file contains correspondence sent between Theatre Projects Consultants Ltd, Mole-Richardson (Stage & Studio Engineering) Ltd, Russell Johnson Associates/Consultants Collaborative (acoustic consultants), Sir Robert McAlpine & Sons Ltd, the National Theatre, Davis Belfield and Everest and Derrick Wade & Waters (surveyors).The correspondence is in the form of letters and relates to the sound insulating doors and safety curtain, including repairs and completion of the subcontract and disputes over costs with Mole-Richardson Ltd. Items include an analysis of the weights of the safety curtain at various stages of the design. Original folder disposed of. '904 - 5B3 (2) National Theatre Sound Insulating Doors Opened 22.6.77' was written on the spine. |