- CollectionCamb. Medieval History - Papers relating to the Cambridge Medieval History Series
- SeriesBox 3 - Letters to and from the editors and publishers of Cambridge Medieval History
- Subseries1-11 - Letters to J. R. Tanner from C. W. Previte-Orton
- File7 - Letters to J. R. Tanner from C. W. Previte-Orton
- 9 more...
- Item10 - Autograph letter, signed, from Cambridge
- Item11 - Autograph letter, signed, from Cambridge
- Item12 - Autograph postcard, signed, from Cambridge
- ItemDoc 14 - Autograph letter, signed, from Cambridge
- ItemDoc 15 - Autograph letter, signed, from Lausanne
- ItemDoc 16 - Autograph letter, signed, from Les Diablerets
- ItemDoc 17 - Autograph letter, signed, from Cambridge
- Item13 - Autograph postcard, signed, from Cambridge