Łódź Ghetto led to sunken eyes, swollen abdomens and aged appearances while also stunting the growth of ghetto children. Since 1940, the ghetto used its own currency, the Lodz Ghetto mark, which had no value outside the ghetto. The use of other currency was prohibited. Organization Administratively, the Łódź ghetto was subject to the City Council. Initially, mayor Karol Marder separated from the provisioning and economy department the branch for the ghetto at Cegielniana street (today Jaracza 11), whose manager was first Johann Moldenhauer, and then a merchant from Bremen, Hans Biebow. From October 1940, the facility was raised to the rank of an independent department of the city council – Gettoverwaltung, reporting to Mayor Werner Ventzki. Initially, the main tasks of the ghetto board were supplying, supplying medicines and settling the ghetto with the city. Soon, however, the inhabitants began to be plundered and exploited to the maximum, transforming the ghetto into a forced labor camp in hunger for food rations and extreme living conditions. From 1942, Hans Biebow and his deputies Józef Haemmerle and Wilhelm Ribbe demonstrated in the selection and displacement of ghetto inhabitants, and Biebow and his commercial capabilities were quickly appreciated by the dignitaries of the central authorities of the Warta Country. Biebow became the real ruler of the ghetto, and Gettoverwaltung officials arrived at a rapid pace – from 24 people in May 1940 to 216 in mid-1942. To organize the local population and maintain order, the German authorities established a Jewish Council commonly called the Judenrat or the Ältestenrat ("Council of Elders") in Łódź. The chairman of the Judenrat appointed by the Nazi administration was Chaim Rumkowski (age 62 in 1939). Even today, he is still considered one of the most controversial figures in the history of the Holocaust. Known mockingly as "King Chaim", Rumkowski was granted unprecedented powers by the Nazi officials, which authorized him to take all necessary measures to maintain order in the ghetto. Directly responsible to the Nazi Amtsleiter Hans Biebow, Rumkowski adopted an autocratic style of leadership in order to transform the ghetto into an industrial base manufacturing war supplies. Convinced that Jewish productivity would ensure survival, he forced the population to work 12-hour days despite abysmal conditions and the lack of calories and protein; producing uniforms, garments, wood and metalwork, and electrical equipment for the German military. By 1943, some 95 percent of the adult population was