Guide on dating vintage rings
At the bottom of the page is a list of style numbers and names of most of the bags that have such a thing, of course style numbers were not assigned until 1994.
The style number is the last four or five numbers after the dash in any Coach serial number made 1994 or later.
Vintage costume jewelry usually doesn’t have purity marks, but will often have a maker’s mark (commonly called the signature), and can sometimes have a retailer mark and/or patent or inventory marks.
Patent numbers are especially helpful when dating older vintage jewelry, and will be covered in a separate article in this series.
The third or fourth number in the creed is the factory designation number.
I don't think Coach has ever released a list of these numbers and what they stand for to the public.
This bag was made prior to the time when Coach adopted a creed, and prior to the time when they had serial numbers inside the bags, yet after the Coach metal tag from below, placing it late 1960's, early 1970's.Whether you plan to keep the jewelry as a family heirloom or would like to resell it, a knowledge of vintage jewelry marks will help you to identify and date it properly.I often get requests from people asking for help with vintage jewelry they’ve acquired. Many of our Modern era pieces are previously owned, and some are newly made reproductions of past eras, as described on the product page. Modern jewelry designers had the ability to work with advanced tools and technology which created evolved designs based on pivotal fashion statements of past eras.
The first letter is the month, in order from A for January, all the way through M for December, skipping I for clarity because I was too easy to mistake for 1.