Antique/Vintage Compact K&K Kotler Kopit Enameled With Faux Turquoise/Ruby Band

Description

Beautiful unsigned Kotler & Kopit (K & K) lipstick and powder mirrored compact. Enameled with faux cabochon turquoise and faceted ruby rhinestone band.
Stamped with patent number (see photo of patent registration) and Made in the USA.
Lipstick case appears to have never had any product inside, absolutely pristine. Powder has broken up over time.
Clasps and hinges are mint.
A little tarnish on lipstick case.
I’ve read that this style compact was featured in the Collectors Encyclopedia of Compacts, Carryalls & Face Powder Boxes.
Measures approximately:
3” x 2 1/4” x 3/4”