It appears Salomo Israel fled illegally to Belgium, as he was deported on Transport XIV from Mechelen to Auschwitz on 24.10.1942. His actual date of death is 22.11.1942. (Mecheln-Auschwitz 1942-1944, List of Names of the Deportees, VUB Press, Brüssel, 2009, Death Books of Auschwitz).
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