| Reference Number | TPC/3/6/25 |
| Title | New National Drum Revolve. Drum to Disc Clamp Details |
| Level | Item |
| Date | 13 March 1974 |
| Description | Mole-Richardson (Stage & Studio Engineering) Ltd drawing number D14-218. Drawn by D Cox Tryco. Works number 2815. |
| Extent | 1 drawing |
| Series | National Theatre Drum Drawings Part 2: 1 of 2 |