| Reference Number | Title | Date | Series |
| RNT/SM/1/126 | Sir Gawain and the The Green Knight | 1977 | Prompt Scripts |
| RNT/PR/4/1/149 | Sir Gawain and the Green Knight | December 1977 - February 1978 | Press Production Review Files |
| RNT/PP/1/2/27 | Sir Gawain and the Green Knight | 08 December 1977 | Lyttelton Programmes |
| RNT/PP/5/54 | Sir Gawain and the Green Knight | 1977 | Rehearsal Photographs |
| RNT/PR/3/127 | Sir Gawain and the Green Knight | 1977 | Rehearsal and Production Photographs |
| RNT/PP/2/5/85 | Two NT Christmas Shows | December 1977 | Repertory Posters |
| RNT/SM/2/3/17 | Sir Gawain and the Green Knight | 1977 - 1978 | Lyttelton Show Reports |
| RNT/PO/2/1/5 | Sir Gawain and the Green Knight | 1977 - 1978 | Lyttelton Production Office Show Files |
| RNT/CO/1/103 | Sir Gawain and the Green Knight | 1977 | Costume Department Production Files |