Marcus Parser bought four Sperr stamps for himself, for his wife Rebecca Parser-Polak, his daughter Sonja Parser and for a second child that survived the war. It is presumed that he surrendered a large amount of jewellery in the context of the S-Aktion. The family lived at 98 Amsteldijk, second floor, in Amsterdam, from where they moved, presumably under duresse, to 29 Krugerstraat, third floor, in Amsterdam.
The archive of the Stichting Sieraden-Comité contains a statement of the right to inheritance from 1961.
NIOD, Records Stichting Sieraden-Comité, film 581, nr 188, file 59
In addition, a Jokos file (number 55189) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.