- CollectionCamb. Medieval History - Papers relating to the Cambridge Medieval History Series
- SeriesBox 1-2 - Letters to and from contributing historians to Cambridge Medieval History
- SubseriesBox 2 - Letters relating to historians M-W
- File49 - Letters from Paul E. Mankin
- Item1 - Autograph letter, signed, in French, to J. R. Tanner from Paul Martin, Geneva
- Item2 - Autograph letter, signed, in French, to J. R. Tanner from Paul Martin, Geneva
- Item3 - Autograph letter, signed, in French, to J. R. Tanner from Paul Martin, Geneva
- Item4 - Typewritten letter, signed, in French, to J. R. Tanner from Paul Martin, Geneva