Bookplate made for Ephraim Izaak Levie (Eil) Rosenbaum, a pharmacist in Amsterdam, Netherlands, in the 1930s. Germany occupied the Netherlands in May 1940 and, by 1942, deportations of Jews to concentration camps were frequent. In March 1943, Eil decided that his family needed to go into hiding. He sent his wife, Johanna, and son, Max, to Neede and his two year old daughter, Betty, to live with a Protestant family, Berthe and Jan Hageman, in Eibergen. In April 1943, Johanna and ten week old Max were betrayed by a Dutch Nazi and deported and killed in Sobibor extermination camp. In late Apri...