- FondsA3299 - Hilda and Rusty Bernstein Papers
- SeriesA - Hilda and Rusty Bernstein Political Life up to 1964
- SubseriesA6 - Rivonia Trial
- sub-subseriesA6.3 - Letters to and from Rusty Bernstein in jail
- sub-subsubseriesA6.3.4 - Hidden messages on cloth
- FileA6.3.4.1 - Transcriptions
- PartA6.3.4.1.1 - Transcriptions
- PartA6.3.4.1.1a.1 - Transcriptions
- PartA6.3.4.1.1 - Transcriptions