Hallmark Jewelry Research, dating vintage jewelry from their marks.
CORO Vintage Gold & Silver Tone Leaf Brooch Pin 1919-1937 *Pristine* Estate Pin | eBay
CORO- 1919 Brooch I believe. | Collectors Weekly
Vintage 1919-1937 signed CORO Flowered Rhinestone Brooch | eBay
Early Coro Elephant Pin Brooch Enamel Rhinestones, Pat Pend. - Ruby Lane
Coro
CORO- 1919 Brooch I believe. | Collectors Weekly
Vintage 1919-1937 signed CORO Flowered Rhinestone Brooch | eBay
Large Coro Brooch from the 1940s | 'Stars in the Sky' Bouquet
Coro
1919 Coro Lovely Pink Rhinestone Gold Filigree Snowflake Pretty Teal Blue Enamel | eBay
Coro Brooches - 37 For Sale at 1stDibs | coro jewelry brooch value, coro brooch value, most valuable coro jewelry
Coro | Jewelry | Coro C919 Amethyst Rhinestone Gold Tone 3d Snowflake Brooch | Poshmark
Coro Brooches - 37 For Sale at 1stDibs | coro jewelry brooch value, coro brooch value, most valuable coro jewelry
Vintage 1919-1937 signed CORO Flowered Rhinestone Brooch | eBay
1919 Coro Brooch - Etsy
CORO Vintage Gold & Silver Tone Leaf Brooch Pin 1919-1937 *Pristine* Estate Pin | eBay
ArtDeco Coro 1919 "PatPend" LadyBug Enamel FauxGem Vermeil Brooch For Sale at 1stDibs | faux lady bug, 1919 coro brooch, the beetle 1919
CORO- 1919 Brooch I believe. | Collectors Weekly
VTG CORO c.1919 Gold Tone Figural Leaf & Green Rhinestone Clover Brooch | eBay
RARE 1919 SCRIPT CORO CZECH GLASS CORAL Joseff of Hollywood DRAGON GARGOYLE PIN | eBay
