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JEWELRY MARKS - O - Global Gemology & Appraisals
    OSCAR HEYMAN & BROS. Hallmark(s): "HB" Information: Born in Russia, growing up in the Fabergé workshop, Oscar and his brother, Nathan Heyman, learned invaluable techniques working in platinum and gold. Oscar Heyman & Bros. was founded in 1912 after moving to America to avoid military service. They produced top tier jewelry …

Otc jewelry Etsy
    Vintage OTC Sterling Silver Pendant solid 925 silver peace sign, CND symbol, stamped 925 Thailand with matching 925 OTC chain.

What does it mean when jewelry is stamped with OTC? - Answers
    If a piece of jewelry is stamped with OTC 925, the OTC stamp is the name of the company that made the jewelry, OTC International. 925 is a common stamp on all sterling silver. What does otc mean on...

OTC INTERNATIONAL, LTD. Trademarks :: Justia Trademarks
    ETERNITY SILVER. Filed: March 18, 1998 Sterling Silver jewelry, namely, rings, chains, pendents, pins, earrings, and bracelets Owned by: OTC INTERNATIONAL, LTD ...

Antique and Vintage Jewelry Maker's Marks: A Collector’s Guide
    Apr 06, 2020 · The study of jewelry maker’s marks is a fascinating subject, steeped in history, culture, and art. Often overlooked due to their intentionally hidden location and diminutive size, the etchings found inscribed on a piece of modern or vintage jewelry offer a window into the “who, what, and where” of the piece – and are well worth a serious look.

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