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[Alan Turning's Mother]. Autograph Letter Signed by Ethel Sara Turing, 6 Waterden Road, 16 May 1956, black ink on four sides of Basildon Bond pape...
TURING, (Alan). An original GPO Telegram from Alan Turing to Norman Routledge [see provenance below], King's College Cambridge, "Delighted over yo...
[NEWMAN, (M. H.)] Alan Mathison Turing 1912-1954, ASSOCIATION COPY given by Alan Turing's mother [Ethel Sara Turing] to Alan's close friend Norman...
TURING, (Alan). Systems of Logic Based on Ordinals [Alan Turing's PhD dissertation], author's personal copy, SIGNED with his owner inscription on ...
TURING, (Alan). On Computable Numbers, with an Application to the Entscheidungsproblem, unsigned but the author's personal copy, given by Turing's...
TURING, (Alan). Computability and λ-Definability, unsigned but the author's personal copy, given by Turing's mother to Norman Routledge [as record...
TURING, (Alan). The Journal of Symbolic Logic: A Formal Theorem in Church's Theory of Types, by M. H. A. Newman & A. M. Turing, unsigned but the a...
TURING, (Alan). Equivalence of Left and Right Almost Periodicity [TURING'S FIRST PUBLISHED PAPER], unsigned but the author's personal copy, given ...
TURING, (Alan). Finite Approximations to Lie Groups, unsigned but the author's personal copy, given by Turing's mother to Norman Routledge [as rec...
TURING, (Alan). A Method for the Calculation of the Zeta-Function, unsigned but the author's personal copy, given by Turing's mother to Norman Rou...
TURING, (Alan). The Chemical Basis of Morphogenesis, association copy SIGNED by Routledge (bearing his owner inscription), pp. 37-72, original cap...
TURING, (Alan). The Word Problem in Semi-Groups with Cancellation, INSCRIBED BY ALAN TURING in pencil for his friend "N Routledge" [see provenance...
FORSTER (Edward Morgan). An archive of Autograph Letters Signed by E. M. Forster to Norman Routledge, 1953-69, comprising 15 handwritten letters a...
ROUTLEDGE, (Norman). King's and Eton: The Memoirs of Norman Routledge [unpublished autobiography], typed draft with manuscript annotations & corre...
Loading...![[Alan Turning's Mother]. Autograph Letter Signed by Ethel Sara Turing, 6 Waterden Road, 16 May 1956,](https://portal-images.azureedge.net/auctions-2025/hanson10825/images/e51d86e6-9ebf-4cb2-b511-b2eb00be78c1.jpg?h=175)
![[NEWMAN, (M. H.)] Alan Mathison Turing 1912-1954, ASSOCIATION COPY given by Alan Turing's mother [](https://portal-images.azureedge.net/auctions-2025/hanson10825/images/3d1f5d63-c6d4-494f-8507-b2eb00be7dd0.jpg?h=175)
![TURING, (Alan). Systems of Logic Based on Ordinals [Alan Turing's PhD dissertation], author's](https://portal-images.azureedge.net/auctions-2025/hanson10825/images/54a23e25-4623-4b60-a93d-b2eb00be817c.jpg?h=175)
![TURING, (Alan). Equivalence of Left and Right Almost Periodicity [TURING'S FIRST PUBLISHED PAPER],](https://portal-images.azureedge.net/auctions-2025/hanson10825/images/b6036116-4c47-4504-a5ec-b2eb00be95e8.jpg?h=175)
![ROUTLEDGE, (Norman). King's and Eton: The Memoirs of Norman Routledge [unpublished autobiography],](https://portal-images.azureedge.net/auctions-2025/hanson10825/images/6f9fe5fd-cf17-4af7-a689-b2eb00bebd70.jpg?h=175)