The "Notes on Logic", second typescript. This is a typescript of Russell's handwritten translation (document .057823, record 81828) of Wittgenstein's original 4 manuscripts. Russell corrected the typing and wrote roman-numeral classification numbers in the margin by Wittgenstein's remarks. A new typescript must have been made from this to form the "Costello version", published in 1957 in The Journal of Philosophy. The new typescript is not extant in the Russell Archives.

Costello's version is reproduced in the first edition of Wittgenstein's Notebooks, 1914-1916, App. I. Russell's version before he rearranged the remarks is reproduced in the second edition of Wittgenstein's Notebooks, 1914-1916, App. I. See Michael Potter, Wittgenstein's Notes on Logic (Oxford U.P., 2009), pp. 276ff.