
Peacock figural brooch. Sterling silver, rhinestones. 1940s. Signed Theda vintage costume jewelry
Theda vintage costume jewelry
The history of Theda jewelry trademark began one hundred years ago in Providence, Rhode Island. The trademark was owned by Ideal Jewelry Mfg. Co., incorporated in 1921 and located at 21 Eddy Street, Providence, RI.
The company’s craftsmen used sterling silver, marcasite, rhodium plating, 12 K gold, cultured pearl, amethyst, jade, topaz and rhinestones. Traditionally, they worked in etching technique, hand engraving floral patterns on silver. Ideal Mfg. Co signed their pieces “Theda sterling”.
Noteworthy, the company went through several renewals and changes of owners and addresses. Thus, renewed in 1963 Theda trademark ceased to exist in the 1980s. Also, reregistered in 1988 in Cranston, RI, Theda became inactive in 1995.

Amethyst and topaz sterling silver marcasite dangle earrings

Theda trademark by Ideal Jewelry Mfg. Co., Inc.

Maker’s mark

Circle sterling silver pin

Dove triangle shape pendant. Sterling silver, 12 K gold plating, textured alloy

Etched floral design sterling silver oval shape brooch

Flower marcasite sterling silver ring

Hand engraved sterling silver leaf brooch pin

Heart floral pattern hand engraved sterling silver brooch

Rectangular shaped green jade sterling silver marcasite ring

Maple leaf sterling silver engraved cultured pearl brooch

Marcasite sterling silver open work heart pendant

Rectangular shape marcasite sterling silver ring

Round sterling silver marcasite ring

Star of David 12 K gold filled pendant

Sterling silver hand etched leaf brooch

Trademark

Maker’s mark