MS 121 is a hardback exercise book measuring 221 x 172 mm. Wittgenstein has included dates between 26 April 1938 and 5 January 1939 in the text. The binding consists of navy blue paper over card with a brown leather spine. On the bottom left of the front cover there is a bookseller’s stamp embossed in gold reading ‘W Heffer and Son, 19 Sidney Street, Cambridge’. Internally there are 94 leaves measuring 221 x 172 mm ruled with 23 lines per page, including the front and rear pastedowns. The text is written in German. Blue/black ink has been used in the volume which is foliated ff. 1-95 including the rear pastedown. Ff. 94 and 95 are blank. There is some dog-earing, notably ff. 11-12.

Archival note

Text genetic-philosophical note

(2015–) Wittgenstein Source Bergen Nachlass Edition (WS-BNE). Edited by the Wittgenstein Archives at the University of Bergen under the direction of Alois Pichler. In: Wittgenstein Source, curated by Alois Pichler (2009–) and Joseph Wang-Kathrein (2020–). (N) Bergen: WAB.