Trifari Vintage Jewelry Marks Resource: I’ve published a brief guide with photos that discusses various signagures for Trifari vintage jewelry.
You can view it here: My Classic Jewelry Trifari Vintage Jewelry Marks Guide Vintage Jewelry Marks Resource: You can search for “vintage jewelry marks” for information about the jewelry marks used by various jewelry companies.
Check it out here: My Classic Jewelry Vintage Jewelry Books Future articles will discuss other aspects of dating vintage jewelry.
Vintage jewelry patents provide a wonderful way to research and accurately date older vintage jewelry.
One site I like to use is Illusions Jewels’ “Researching Costume Jewelry” pages.
They have an extensive library of jewelry marks located here: Researching Costume Jewelry.
Some makers continue to use the “STERLING” mark in place of “925” even today.Patent numbers are especially helpful when dating older vintage jewelry, and will be covered in a separate article in this series.Antique Jewelry University: Lang Antiques features a section on their site named “Antique Jewelry University” with lots of useful information, such as this page discussing hallmarks: Hallmarks on Period Jewelry 925-1000: Described as the “Online Encyclopedia of Silver Marks, Hallmarks, and Makers Marks,” the 925-1000 site is the first place I go to research vintage silver jewelry marks.It includes silver marks from many countries and you can access it here: 925-1000 Silver Marks When learning how to date vintage jewelry, a maker’s mark (or signature) can be a big help, since most companies changed their signatures over time.As a general rule, signatures without a copyright symbol indicate the piece was manufactured prior to 1955. Jewelry companies would often use up their supply of pre-stamped clasps and findings after switching to a new signature, so some pieces made soon after 1955 might not have copyright symbols.