|
CORO DESIGNERS; The career of Adolf Katz, Coro’s head designer, spanned nearly 40 years. According to patent records he appears to be a remarkably talented and prolific designer, holding more jewelry design patents in his name than anyone else in the industry.
|
imageevent.com/clios_vintage_jewelry/coropatents
imageevent.com/clios_vintage_jewelry/coropatents
|
|
|
|
Each Coro Duette or separable brooch had a uniquely shaped Duette frame made specifically to hold the two pin clips (or fur clips)in a fixed position so that together they could be worn as a brooch.
|
imageevent.com/clios_vintage_jewelry/coropatents/duette...
imageevent.com/clios_vintage_jewelry/coropatents/duettes
|
|
|
Duettes and clipmates jewelry collection ... CORO Duette large blue faux star sapphire and clear rhinestones marked with "patn #1,798,867 (for Gaston Candas 1930), 3-5/8". View #Y21861 ... CORO Duette clear rhinestones and green baguettes marked "pat 1852188" by E.A. Phinney for Island circa 1931, 3". View #C21860...
|
www.morninggloryantiques.com/collectDuettes.html
www.morninggloryantiques.com/collectDuettes.html
|
|
CORO Duette sterling vermeil "Sparkling Peonies" brooch/clips with blue and clear rhinestones, 1944, patent #1798867, 3". View View #C25084 ... CORO "Thorobreds" Duette, shown in the ad at left.. View #C19861...
|
www.morninggloryantiques.com/JewelChatAdCoro.html
www.morninggloryantiques.com/JewelChatAdCoro.html
|
|
Spectacular Coro Duette ... ~ This is also the largest Coro Duette I've ever seen, measuring 3.5" wide and 1.5" high ... ~ Marked "Coro Duette" on the reverse and "Pat.No. 1798867", which is a patent for the clip mechanism; from my research at the United States Patent Office, where I found this patent filing, I found that...
|
www.cooljools.com/IMAGES15/CoroDuette.htm
www.cooljools.com/IMAGES15/CoroDuette.htm
|
|
Pieces that have two dress or fur clips mounted together in a removable fashion on a brooch or frame are commonly known as duettes or clip mates. The term "Duette" should only be used for the Coro pieces that are on a frame stamped "Coro Duette".
|
vintage-jewelry-gems.com/clips%20folder/clips.html
|
|
Coro Duette - costume antique jewelry from Nightingale Antiques ... Home | Bio | Search | Contact | Sale Items | Order | Links ... Gold washed duette.
|
www.nightingaleantiques.com/costumejewelry/1046.html
|
|
Fantasy Jewels. This Duette shouts Deco! As with all Coro Duettes, it can be taken apart and worn as to clips. This brooch is very versatile---worn as a brooch, two clips, one ... A very early Coro, displaying patent number 1798867, the piece dates from 1931. It is signed Coro Duette on the back along with the patent number.
|
www.fantasyjewels.com/items/428607/item428607store.html
|
|
Wonderful, versatile sterling Coro clips. They can be worn together as a brooch as shown here, or separated and worn as clips (great on a hat or belt). The set has a patent number which dates its production as beginning in 1931. The back of the Duette has the patent number and is marked sterling and Coro Duette.
|
www.fantasyjewels.com/items/445366/item445366store.html
|
|
