Logical jottings in BR's hand along with G.E. Moore's and Wittgenstein's hands. The jottings are on the verso of a printed leaflet dated 9 October 1935, announcing the opening of a new bookshop in Cambridge. At the top is a short unpublished letter from Wittgenstein to Moore. Wittgenstein explains that he and Russell took the leaflet from Mrs. Moore's mantlepiece to scribble on.

[The date is known from a Cambridge speaking date for BR. He gave "The Limits of Empiricism" to the Moral Sciences Club that day.]