![Ludwig, Christa - Spencer, Charles - Signed Photograph [CHILDREN] Danish physicist (1885-1962) who made](https://cdn.shopify.com/s/files/1/0327/9089/files/ChristaLudwigandCharlesSpencerinSalzburgFestspieleGB2146_WM.jpg?v=1759267205)
Ludwig, Christa - Spencer, Charles - Signed Photograph [CHILDREN] Danish physicist (1885-1962) who made
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Ludwig, Christa Spencer, Charles Signed Photograph [CHILDREN] Danish physicist (1885 1962) who made Danish physicist (1885 1962) who made foundational contributions to understanding atomic structure and quantum theory Boock (Hamburg)