MEMBERSHIPS & AFFILIATION

Gisbert A. Joseph is or was a member of

• NAWCC # 95993 (since 1988)
• Deutsche Gesellschaft fuer Chronometrie DGC (since 1985)
• World Wide Traders WWT (since 1998)
• International Watch & Jewelry Guild IWJG Charter & Founder Member # 9 (since 1990)
• Antiquarian Horological Society AHS (since 1990)
• The Nordic Restoration Forum HOROLOGISK INSTITUT (since 1990)

• ebay user name : gisbert
• chrono24.com : trusted seller since 2003