| Reference Number | TPC/3/6/26 |
| Title | General Arrangement of Trap Mechanism for Disc Revolve New National Theatre |
| Level | Item |
| Date | 04 November 1974 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D14/224 issue E. Drawn by B M T M. Works number 2815. Original date 13 February 1974. |
| Extent | 1 drawing |
| Series | National Theatre Drum Drawings Part 2: 1 of 2 |