| Reference Number | TPC/5/6/104 |
| 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. Works number 2815. |
| Extent | 1 drawing |
| Series | Mole-Richardson (Stage & Studio Engineering) Ltd Drawings |