CC BY-NC 4.0. Original at the Wren Library, Trinity College, Cambridge, where in 2014-15, on the request of the Wittgenstein Archives at the University of Bergen (WAB) and with the generous financial support of the Stanhill Foundation, London, this scan was produced. The image was post-processed at WAB and is reproduced here by permission of The Master and Fellows of Trinity College, Cambridge, and the University of Bergen, Bergen. The sale, further reproduction or use of this image for commercial purposes without prior permission from the copyright holder is prohibited. © 2015 The Master and Fellows of Trinity College, Cambridge; The University of Bergen, Bergen