Archival note by A. Schmidt and A. Pichler (2015) on Ms-183 (ÖNB: Cod. Ser. n. 37.939, http://data.onb.ac.at/rec/AL00078666): No title [so-called “Koder-Diaries”] • Date: Datings 26.4.1930 – 11.1.1932; 29.11.1936 – 24.9.1937 • Language: German • Size and binding: Hardback notebook containing 122 leaves with text on both sides of 227 x 176 mm inside a binding measuring 330 x 210 mm • Pagination and sequence: Pagination 1-243, not by Wittgenstein • Writing instrument: Pencil in first part (pages 1-157); black ink from 30.1.1937 (pags 158 to the end) • Style: Remarks in code, e.g. on pages 145, 146, 148 • Provenance: Found in the estate of Rudolf Koder 1992, purchased by ÖNB in 2004 • Comment: Wittgenstein started this notebook in Cambridge on April 26, 1930, and continued it after a break in Skojlden beginning on November 29, 1936