Look up the Cartier logo, it's possible? They use elongated C's back to back
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Is this Antique Jewelry? Two C 's Back-to-Back by: Yvonne
Hi Tom
do you have any idea how old this jewelry is? Is the piece marked 14k or no purity mark but tested 14k ? What is the jewelry?
Two C's back-to-back is a an old London Hallmark, Silversmiths, UK sponsor mark, ca 1720s - 1750s- Christopher Canner
If on the hand, it's a 20th century US sponsor's mark, you might like to research in the Jewelry Resources section.
There is a link on the page: "US Jewelry Marks 1922" - From the Jeweler's Index 1922 edition. This resource might be of assistance.
Failing this, you are welcome to send in images of the mark, one must be a close-up of the mark. Another image of the piece in it entirety. Repeat the same steps you have done here + upload your images, however, in the "name your question" field, type "follow-up - identify a hallmark".
