The file comprises the following items (as b/w photocopies):
1. A satirical note, in the style of an in memoriam card, sent to Maurice Wilkins and signed by Franklin and Gosling, with the following text (holograph, Franklin's hand): "It is with great regret that we have to announce the death, on Friday 18th July 1952[,] of DNA helix (crystalline). Death followed a protracted illness which an intensive course of Besselised injections had failed to relieve. A memorial service will be held next Monday or Tuesday. It is hoped that Dr M H F Wilkins will speak in memory of the late helix." The text refers to the 'A' form (low humidity) of DNA. The card is reproduced in Brenda Maddox, Rosalind Franklin: The Dark Lady of DNA (2002), p. 185.
2. Rosalind E Franklin and R G Gosling, "Rough Draft / A note on molecular configuration in sodium thymonucleate" (dated 17 March, 1953). A draft of the paper that appeared in Nature alongside the first Watson and Crick paper (25 April, 1953).
Note: the draft paper by Franklin and Gosling is also in the file in the form of five photographic facsimiles of the five photocopies.
That these copies are not colour photocopies suggests that they might possibly not have been made by Sir Aaron Klug.