Erich Philippsohn was a son of Semmi Philippsohn and Minna Roberg. Erich lived in Lower Saxony in Germany until he immigrated to the Netherlands in 1927. Addition of a visitor of the website
According to a list with shops of Jewish owners, compiled by the Amsterdam police in 1940, this family had a watchshop, address: Merwedeplein 4 in Amsterdam. Abstracts of the police archives which are currently at the Amsterdam municipal archives