In addition, a Jokos file (number 15976) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos file reveals that a claim was lodged for compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 4187 / 14035).
According to a list with shops of Jewish owners, compiled by the Amsterdam police in 1940, this family had a shop for musical instruments, address: Utrechtschestraat 39 in Amsterdam.
Abstracts of the police archives which are currently at the Amsterdam municipal archives