Dating victorian jewelry clasps hinge
30-Oct-2019 00:05
Less familiar primary sources such as patents and copyrights, books about specific companies, and period advertisements also provide a wealth of information to assist with dating.Beginning in the 1930s up to the mid-to-late 1950s, Trifari and Coro patented hundreds of costume jewelry designs.In an amazing coincidence, the jewelry and the vintage advertisement were found by the author within a three-month period, with the assistance of another CJCI member, Robin Deutsch.The three key primary dating tools, patents and copyrights, books about specific companies, and period advertisements, can be used as an initial step when researching a particular piece of jewelry.
Two great examples are Florenza-marked jewelry presents a dating challenge, as there are no original records for the company’s production.
Once primary sources are exhausted, many well-regarded books are great secondary tools for dating.