
Willem Six van Oterleek: Deciphering Historical Codes and Drafts
Explore the mysterious codes and drafts of Willem Six van Oterleek, a Dutch emissary in Russia from 1808-1810. Uncover the secrets hidden within these intriguing historical documents that contain possible gossip from the Imperial court and intelligence on ship movements and troops. Delve into the enigmatic world of codebreaking and historical espionage as we question the unsolved mysteries surrounding these intriguing artifacts.
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Presentation Transcript
The codes of Willem Six van Oterleek Karl de Leeuw June, 2018 Karl de Leeuw June, 2018
The codes of Willem Six van Oterleek The codes of Willem Six van Oterleek 28 Drafts in Code from the Archives of the Dutch legation in Russia, 1808 - 1810 Karl de Leeuw June, 2018 Karl de Leeuw June, 2018
The codes of Willem Six van Oterleek The codes of Willem Six van Oterleek Example of a draft Karl de Leeuw June, 2018 Karl de Leeuw June, 2018
The codes of Willem Six van Oterleek The codes of Willem Six van Oterleek What do we know so far? (a) probable author: Willem Six van Oterleek (1761-1811): Dutch emissary in Russia from 1808-1810 (b) likely to contain gossip from the Imperial court and/or intelligence about the movement of ships and troops. (c) we have roughly 5300 code groups in sum total Karl de Leeuw June, 2018 Karl de Leeuw June, 2018
The codes of Willem Six van Oterleek The codes of Willem Six van Oterleek What do we not know? (a) were these letters ever solved? (b) if so, do these solutions still exist and where to look for them? (c) which codebook was being used? (d) why were these drafts made in the first place? Karl de Leeuw June, 2018 Karl de Leeuw June, 2018
The codes of Willem Six van Oterleek The codes of Willem Six van Oterleek Full view of S.E. Croiset for Dirk van Hogendorp two pages Sheet of a codebook, issued by in August 1803 for his mission next to each other to Saint Petersburg Karl de Leeuw June, 2018 Karl de Leeuw June, 2018
The codes of Willem Six van Oterleek The codes of Willem Six van Oterleek Detail Karl de Leeuw June, 2018 Karl de Leeuw June, 2018
The codes of Willem Six van Oterleek The codes of Willem Six van Oterleek The codebook above is a likely candidate, but we are not sure. Main characteristics: (1) roughly 6400 code groups divided over 16 pages (2) 1-, 2-, or 3-digit numbers, in combination with a sign written above or under (3) the numbers following columns; their meanings following rows (4) every double page has a alphabet of its own, with additional groups for frequently occurring doubling of letters or syllables (5) can be used both for French and for Dutch Karl de Leeuw June, 2018 Karl de Leeuw June, 2018
The codes of Willem Six van Oterleek The codes of Willem Six van Oterleek Solving strategies: (1) trial and error (2) ? (3) are there any general rules ,making computation worthwhile? Karl de Leeuw June, 2018 Karl de Leeuw June, 2018
The codes of Willem Six van Oterleek The codes of Willem Six van Oterleek Oterleek, North Holland Karl de Leeuw June, 2018 Karl de Leeuw June, 2018