Name: Willy Wingberg

Personal details: Jeweller with his own workshop and expert at the Berlin Regional Tax Office

Address: Potsdamer Straße 36, Berlin W 9 (Tiergarten)

Appraised object group: Silver, jewellery, precious stones.

Traces in the files: Commissioned by the tax authorities to appraise a wide variety of jewellery and handicrafts made of precious metals or gemstones