c.1896 – 1915: 10 Maiden Lane New York NY
- Name change to – M.J. Averbeck
- Floral Brooches & Buckle.
- Silver, Gilt & German Silver.
- Manufacturer of Art Nouveau fashion jewelry.
- Noted for their silver “Gibson Girl” and “Flor-a-Dora” brooches.
- M.J. Averbeck
- Specializing in gold rings.