ca. 1940

Prague [Czech Republic] [Unconfirmed]

Commentary from other sources:
1) “The following regulations of 10 September regulate the trade of Jewish dental technicians. The right to practice by Jews as dental  technicians  is extinguished 30 days from the publication of the announcement (date of announcement 11 December 1940). Jews can be admitted as dental technicians but must not number more than 2% of the total  of admitted dental technicians. The practice of their trade is restricted to Jews. They are obliged to display the sign ‘Jewish dental technicians’.”

“Nazi Restrictions on the Jews of Prague & The Role of the Jewish Community Council,” Holocaust Education & Archive Research Team, Accessed 8/27/2015