| Reference Number | Title | Date | Series |
| RNT/CO/1/87 | Weapons of Happiness | 1976 | Costume Department Production Files |
| RNT/PP/1/2/12 | Weapons of Happiness | 14 July 1976 | Lyttelton Programmes |
| RNT/SM/1/99 | Weapons of Happiness | 1976 | Prompt Scripts |
| RNT/PR/4/1/105 | Weapons of Happiness | May 1976 - November 1976 | Press Production Review Files |
| RNT/PP/5/33 | Weapons of Happiness | 1976 | Rehearsal Photographs |
| RNT/PR/3/98 | Weapons of Happiness | 1976 | Rehearsal and Production Photographs |
| RNT/SM/2/3/3 | Weapons of Happiness | 1976 | Lyttelton Show Reports |
| RNT/PO/2/1/1 | Weapons of Happiness | 1976 | Lyttelton Production Office Show Files |
| RNT/PR/2/1/181 | Cancellation of performance of 'Weapons of Happiness' | c.1976 | Press Releases 1960-1979 |
| RNT/PP/2/2/14 | Weapons of Happiness | 14 July 1976 | Lyttelton Posters |
| JH/13/2/2 | National Theatre | 1964-1985 | Programmes - non-Herbert designed productions |
| RNT/PP/3/1/3 | 1976-1980 | 1976-1980 | NT Production related printwork |
| RNT/PP/3/9/3/8 | Weapons of Happiness | 1976 | Lyttelton Cast Lists |