As you can see by the patent below, this duette was designed by Gene Verrechio and patented in 1941. Pat # for the duette is Des. 126,490 and for the clip #1798867.
Coro invented the "Duette" in the 1930s. An ingenious invention. The design involves two pin clips that fit together, joined by a mechanism at the back, so they can be worn together as a single brooch...
Robert, Or Original By Robert, Is The Mark Used By The Fashioncraft Jewelry Company.
The Firm Was Founded In New York City By Robert Levy, David Jaffe, And Irving Landsman.
Landsman Left In 1951, And The Company Changed Its Name To Robert Originals, Inc. Around 1960...
It is 7 1/2" long by 1 3/16" wide by 1/4" tall.
I can say with certainty that this is indeed a rare find. It is not signed. It is circa 1940.
Each full bloom rose has centers of white pave rhinestones on top.
There is no enamel loss, no missing rhinestones, and no dead rhinestones. It is just an incredibly fabulous bracelet.
Anything made by DeRosa is striking in design with high quality enamel work...
In "American Costume jewelry by Brunialti & Brunialti, v. 2 p.164. she is called "Female Head" from 1941. Vogu;e, October 1. 1941 called her "platinum head" .
Manufactured by Goldseal MFG for Urie Mandle Co.
Designer: Murray Slater, patent 146752 in 1947.
Ref: American Costume Jewelry by Carla and Robert Brunialti p 240. Dimensions: 2 3/4" x 2"
Hallmarks: NONE- The two buttons for signature seem to be there but I cannot read anything on them. All of the pieces that I have had have been sterling, so I am assuming that this one is also.
Dimensions: 2 3/4" x 2"
Hallmark: D C Creations on back of watch
Hallmarked Trifari with crown and copyright C.
Condition: Excellent
Size: 3 1/4" x 2"
Reference: Tolkein and Winkinson, A Collector's Guide to Costume Jewelry, p. 104, pictured.
Reference: Schiffer, Best of Costume Jewelry, p. 103, Patent 162,456 , March 13, 1951
Dimensions: 2 7/8" x 2"
Hallmark: None
It is 4 3/8" tall by 2 7/8" wide. Reference : Masterpieces of costume Jewelry, Dubbs Ball and Dorothy Hehl Torem, Schiffer, 1996 page 138 - Vaue $450-$600.00