Button cover with number 178284 given to Julian Hirshfeld when he was a displaced person in Paris, where he was sent after his liberation from Buchenwald concentration camp on April 11, 1945. The pin was issued by the Federation Nationale des deportes Internes resistants Patriotes (FNDIRP) in April 1945 to honor the memory of Charles Oschkor, 178284 was his prisoner number. Oschkor was a former kapo of Blechhammer concentration camp who sacrificed himself to save other prisoners. Poland was occupied by Nazi Germany in September 1939. Julian, a Jewish textile engineer, was interned in Lodz Ghetto in November 1940. When it was closed in 1943, he was transferred to Birkenau, Auschwitz, Goleshau, and Buchenwald concentration camps. His first wife Hela and daughter Fryda, 11, were deported from Lodz and killed in Auschwitz. Julian's skills as a textile chemist were useful to the Germans and he worked at various German textile plants during his imprisonment. He believes this is why he survived. After US troops liberated Buchenwald on April 11, 1945, Julian was sent to the Red Cross camp run from the Hotel Lutetia in Paris. On September 21, 1946, Julian married Franka Rosenblum, whom he had known before and during the war. Franka was interned in was interned in the Zawiercie ghetto until 1943 when she was interned in Auschwitz, Birkenau, Marhof, and Ravensbruck, until escaping during a death march and being liberated in April 1945. Her entire family was killed. At the end of 1946, Franka and their infant daughter left for America. Julian followed in 1949.