| Reference Number | TPC/3/6/11 |
| Title | Ass[embl]y and Details of Spring Carriage for Drum Revolve Drive Unit New National Theatre London |
| Level | Item |
| Date | 10 April 1972 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D.14/85. Drawn by A J C. Works number 2815/33. |
| Extent | 1 drawing |
| Series | National Theatre Drum Drawings Part 2: 1 of 2 |