We present hitherto unpublished handwritten notes made by Gertrud Bing after the Kulturwissenschaftliche Bibliothek Warburg relocated to London, possibly in the mid-1930s. The notes, which were written in two notebooks now housed at the Warburg Institute Archive, provide a synopsis of each Panel of the Mnemosyne Atlas. They include indications for the completion, editing, and publication of the Atlas. In her Introduction, Giulia Zanon attempts to contextualise this invaluable testimony through the study of letters and documents, dating from the final months of 1929, which were for both Warburg and Bing the most intense and productive period of work on the Atlas. She also considers the period following Warburg's death and the subsequent abrupt interruption of the Atlas project. The aim of this contribution is to emphasise the considerable significance of this document both for the hermeneutics of Mnemosyne and its publishing history. It constitutes evidence of the unwavering commitment to publish the Bilderatlas as part of a larger project to publish Warburg’s corpus.