Dating gold filled
Reclaimed mesh is silver or gold plated brass dating from the 1890s through the 1980s, the earliest versions including a variety of colorful, original, hand painted enamels.
Rather, the date must be "de-coded" using symbols, serial numbers, and two-character codes placed on various parts of the watch.
Stones in the rings could also be set in a silver head with a karat gold band and rose cut diamonds, all typical of this time period.
Hair and memorial rings were worn by both men and women.
in fact, it is estimated that only about 5% of cases produced were solid gold.
These days, solid-gold cases have become even more scarce because so many of the large gold cases have been melted-down for their gold-value (a practice we abhor and discourage, by the way).
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Below are images showing the two patent dates that often cause confusion.