From 1955
Vendome
Capital-letter rectangular plaque on the filigree back; distinct from the mixed-case hook signature.
Read the stamp
Costume jewelry marks
Costume jewelry signatures identify brands and workshops; a brand stamp can appear on plated metal and does not state a precious-metal fineness.
Signed backs, clasps and hang tags
Look for a full name such as Trifari, Coro or Monet on a brooch back, earring clip or clasp. LC can represent Liz Claiborne in its documented signature. A copyright symbol belongs to the design or brand wording, not a metal grade.
What to check next
Compare the typeface, any accompanying crown or emblem and the construction of the clasp. Separate GP or other plating wording from the name. Match earrings as a pair: clip backs and screw fittings may have different space for a signature.
Related marks
154 marks
1973
Christian Dior / Henkel & Grossé
The 73 line and abbreviated Chr.Dior wording distinguish this oval hanging tag from the full-name 1964 plaque.
c. From 1980
Miriam Haskell
HASKELL alone on the upper two clips; lower examples show the older full name.
c. From 1951
Albert Weiss & Co., Inc.
Bold block WEISS fills a small horizontal oval; no CO, NY or copyright symbol.
c. 1977–1988
Swarovski
S.A.L. belongs to the earlier jewellery marking family, not the later Daniel Swarovski oval.
Undated
Marvella
Mark: L’Opera 1928 Mark: Marvella Zenith Quality 1939 Mark: Marvella Minerva Quality 1939 Mark: Lisanda since 1940 Mark: Chiffon 1941 Mark: Marvellissimo 1948 Mark: Marvella Pearl Nuggets 1948 Mark: Marvella Fabulous 1949 Mark: Knight’s Collar used since 1949 for pearl jewelry Mark: Natura “95” 1954 Mark: Spin-It 1955 Mark: Marvella with copyright mark, after 1955 Photos courtesy RCJ Mark: Marvella first used after 1911 Courtesy RCJ Mark: Date Timer 1956 Mark: Maturelle 1957 Mark: Freshura 1958 Mark: Marvellesque 1958 Mark: Marvellette 1958 Mark: Marvellier 1958 Mark: Hi-Rise 1958 Mark: Dynasty — first used about June 1959 Mark: Marvelustre 1960 Mark: Marvelique 1961 Mark: Marvella Coutura 1961 Mark: Marvella Pearlescent 1961 Mark: Marva- 1963 Mark: Lisanda Mark: Neptune 1939 Mark: Venus Notes: [1982-2000: a division of the Monet Group] Monet Group, which includes Trifari and Marvella was bought by Liz Claiborne in July 2000 and moved out of the country
After 1955
Monocraft Products Co., Inc.
The source dates Monet signatures with a copyright sign after 1955.
Undated
Vendome
Oblong tag without a visible copyright symbol; differs from the heart tag and the copyright-bearing stamps.