| Reference Number | TPC/3/12/1 |
| Title | G. A. of No/Overload Trip Mechanism and Return Pulley Block for Scenery Hoists Upper Theatre National Theatre London |
| Level | Item |
| Date | 04 December 1973 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D14/23 issue B. Works number 3092. Original date 18 March 1970. |
| Extent | 1 drawing |
| Series | Scenery Suspension Equipment for the Olivier Theatre of the National Theatre |