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![WITTGENSTEIN, Ludwig (1889-1951). Two autograph letters signed ('Lud Wittgen' and 'L Wittgen') to [Moritz] Schlick, n.p. [Cambridge], n.d. [22 August and 27 November 1930]. WITTGENSTEIN, Ludwig (1889-1951). Two autograph letters signed ('Lud Wittgen' and 'L Wittgen') to [Moritz] Schlick, n.p. [Cambridge], n.d. [22 August and 27 November 1930].](https://www.christies.com/img/LotImages/2019/CKS/2019_CKS_17200_0583_001(wittgenstein_ludwig_two_autograph_letters_signed_to_moritz_schlick_np061030).jpg?mode=max)
WITTGENSTEIN, Ludwig (1889-1951). Two autograph letters signed ('Lud Wittgen' and 'L Wittgen') to [Moritz] Schlick, n.p. [Cambridge], n.d. [22 August and 27 November 1930].
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Review Wittgenstein in Cambridge, Letters and Documents 1911-1951 ed. Brian McGuinness - The Dabbler
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Letters from Ludwig Wittgenstein,: With a memoir; (English and German Edition) by [Wittgenstein, Ludwig] Engelmann, Paul - 1967-01-01
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View of Newly Discovered Wittgenstein Autograph in the Austrian National Library | Nordic Wittgenstein Review
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Letters from Ludwig Wittgenstein with A Memoir (English and German Edition): Ludwig Wittgenstein, Paul Engelmann: 9780818013195: Amazon.com: Books
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WITTGENSTEIN, Ludwig (1889-1951). Autograph letter signed ('Lud Wittgenst') to [Moritz] Schlick, n.p., 20 November 1931.
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