Most of the material here is Hasse's work but there is some correspondence and a draft for a further collaborative paper.
E.1-2: Letters from Hasse, May 1933-November 1935, chiefly concerning the joint paper, mostly in English.
E.3: 'Gaussian sums in finite fields', by H. Davenport and H. Hasse. 12pp. typescript and ms. draft with ms. corrections.
E.4-5: Miscellaneous ms. notes and calculations by Hasse, in English and German. E.4 includes sets of notes dated 28 September 1933 and 10 December 1935.
E.6: 7pp. ms. draft, in German, by Hasse.
E.7-15: Copies of typescript drafts of papers by Hasse, in German, presumably sent by him to Davenport. Some have ms. corrections and some are dated, 1933-36. 9 folders