CORO Duette large blue faux star sapphire and clear rhinestones marked with patn. 1798867, 3-5/8".    View   #Y21861

CORO Duette sterling vermeil "Sparkling Peonies" brooch/clips with blue and clear rhinestones, 1944, patent #1798867, 3".   View   View   #C25084

CORO Duette clear rhinestones and green baguettes marked "patn 1852188" and "1798867", 3".  View  #C21860

CLIP in clear and green rhinestones. View  #Y12789

    CORO Duette sterling vermeil enameled "Jays" brooch/clips, Adolph Katz, 1942, 3", one belly has slight chip.  View   View   #C25083

  DUO style clear pave and blue rhinestone 2-1/2" brooch/clips. View    #Y20940

CORO Duette brooch/clips in clear rhinestones.  View  #C21899

CLIP/BROOCH clear rhinestone clip/pin combo, circa 1940.   View       #Y17498

DOUBLE clip 2-5/8" brooch in clear rhinestones circa 1935, marked pat 2114675, circa 1940. View   #c21253

  TKF Clipmates Deco style clear rhinestone pave 2-5/8" pin/clips.  View
  #T20942

 TRIFARI CLIPMATE two flying birds in clear rhinestones, almost 3" across!  This is like a Coro Duette, and the pin comes apart for wearing as two clips, too. View   #T15823

 TKF CLIPMATE in a very Deco style... this is really special and in magnificent condition!    View    #T16496

    CORO DUETTE 3" clear rhinestone brooch/clips marked "patn #1,798,867 and 1,852,186". This is unusual in that the brooch looks good even when the clips are off.  View  View #Y21860

An advertisement from the Marshall Field's Christmas 1939 catalog.
The caption says, "Rhinestone set in rhodium-finished white metal for the
bracelet.  $6.50  Matching clipmate brooch which separates into a pair of
clips.  $6.50". This also tells us that they were using rhodium plate as early as 1939.
(Ad courtesy of Bobye Styverson)

   COMBINATION clips/brooch of clear rhinestones,  marked "pat 1852188" which is circa 1932, 3" long.  View  View #Y21258

 TRIFARI  Princess Eugenie Duette with black enameling and clear rhinestones, 2-7/8". View    #T23087

    CORO clear rhinestone pave on silver tone floral motif Duette, 3-1/3", circa 1940.   View   #C15621

   DEROSA Duette style sterling pin with black enamel and clear rhinestones, 2-1/4".   View   View   #d28012

   CORO Duette clips/brooch with Deco design in clear rhinestones amrked with patent number 1,798,867, size 3-3/4" by 1-3/8".  View    Mark  #C22535

  CORO DUETTE  2-1/8" pin/clips, a terrific design in clear rhinestones.  View   #C14510

   COROCRAFT Duette in clear rhinestones, 3-1/4" patented 1798867.  View   View   #C25122

   DECO CLIP/BRACELET silver tone mesh slide bracelet with a detachable dress clip end decoration.  View   View   #Y19966

   BOW 2" double clip on a pin back in green and clear rhinestones, most unusual.    #Y19831 View

TRIFARI  Clipmate clear rhinestone flowers and leaves motif, marked "patn 205,080", 2-7/8".   View  #T21902

  DOUBLE 3" dress clips on a pin back, all in reds and clears. Large and lovely!   View   View    #Y19814

 CORO pink enameled floral Duette, similar to the Day & Night set patent issued to Adolph Katz, designer, circa 1939.  Back view  #C13105 

CORO DUETTE  sterling vermeil blue rhinestone, green enameled leaves pin/clips with clear rhinestone accents, 3" wide with slight finish wear, patent number 1,798,867.  View   #C21185

   CORO "Cherubin" cupids birthday Duette, July with pink heart-shaped rhinestone, 2-1/3", circa 1956.  View  Back View #C20928

CORO ad for "Cherubin" Duettes, Spring and Summer 1956
(see bottom right corner of ad).

CORO cupids Duettes

   CORO DUETTE  3" brooch/fur clips and 1" screw back earrings, blue floral petals and green leaves enameled design, circa 1948.   View    View     #C22514

CORO DUETTES ad from 1948 showing floral set in picture second from top.

  CORO Duette flowers brooch/clips in aqua, blue, red and clear rhinestones with green enameled leaves.   View   View   #C24993

 CORO Duette crowned cupid heads pin, 2-1/2", marked "patn 1798867". View  #C20937

    CORO DUETTE red enameled birds brooch with rhinestones, marked with patn. 1798867, 3-5/8".  View  View    #C10718 

  CORO DUETTE comedy and tragedy in sterling vermeil, enamel and rhinestones. These can be seen in in Brunialti's "American Costume Jewelry, Art & Industry" on page 145, patent 144,198 dated 1946.  View #C5695

   TRIFARI  Duette, faux pearl-belly and rhinestone birds, 3".   View    #T21903

  COROCRAFT "Heavenly Swallows" Duette advertisement, 1945.

  CORO "Heavenly Swallows" Duette with clear rhinestones, circa 1944, designed by Adolph Katz, 2-1/2", patent #1798867. Shown in Brunialti's "Tribute to America" on page 79.   View   View   #C27864

CLEAR brilliant rhinestones Duette style brooch and clips combination marked with "patn #1945268", 3".   View   #Y29272

   VENDOME Duette style aurora borealis set in brushed gold tone with clear rhinestones brooch/clips, 2-1/3".  View   View   #C25413

COROCRAFT Duette bow brooch of blue and clear rhinestones set in gold tone, 2-1/2".   View  #C24001

    RED and clear duette style brooch, 3-1/4", marked with "patn 2,114,675" (Patented by Axel H. Carlson, April 12, 1937) on the back, circa 1937.   View   View   #Y24848

 CORO Duette of horse heads with matching screw back earrings. Red and aqua rhinestones and enameling decorate each piece.  View   View   View   View   #C24994

  CORO Duette of enameled burgundy flowers in gold tone, 2-1/2", marked with patent number 1798367.  View   #C24900