Dating cameo jewelry

15-Jul-2017 14:22

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.

If it is plastic, it will melt, and then you know it isn’t real. Cameos have been known to be of nature, mythological creatures, men and animals.

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Many tools and techniques are familiar to the experienced collector, including dating by textured versus smooth back casting, extended pin stems and simple “C” closures, the presence of a copyright symbol, the use of aurora borealis rhinestones, to name but a few.

After Trifari won a court case in 1955 for copyright infringement, patenting these types of designs was widely discontinued and replaced by the less-expensive process of design copyrighting.

It is obvious that Trifari and Coro patent information can be used to date pieces of their manufacture.

Cameos are commonly made out of shell, coral, stone, lava, or glass. Cheaper costume jewelry cameos exist, and these are set in a base metal and made out of a molded plastic, glass, or resin.

These are not hand carved and are not worth a lot of money.

Many tools and techniques are familiar to the experienced collector, including dating by textured versus smooth back casting, extended pin stems and simple “C” closures, the presence of a copyright symbol, the use of aurora borealis rhinestones, to name but a few.

After Trifari won a court case in 1955 for copyright infringement, patenting these types of designs was widely discontinued and replaced by the less-expensive process of design copyrighting.

It is obvious that Trifari and Coro patent information can be used to date pieces of their manufacture.

Cameos are commonly made out of shell, coral, stone, lava, or glass. Cheaper costume jewelry cameos exist, and these are set in a base metal and made out of a molded plastic, glass, or resin.

These are not hand carved and are not worth a lot of money.

This is a LARGE CAMEO OF THE EMPEROR ROMULUS AS A BOY.