This patterns has never been reproduced.
This item is in excellent vintage condition. There are no chips, no cracks, and no repairs.
Dimensions: 1 3/4" x 1 1/2"
Reference: Unsigned Beauties of Costume Jewelry, Identification & Values, Marcia "Sparkles" Brown, Collector Books 2002, page 81
There is a Hallmark that is barely visible Made in USA and a symbol which I cannot photograph which appears to be a star with circle made of dots.
Reference: Warman's Vintage Jewelry Identification and price guide, By Leigh Leshner, , Krause Publications 2008 p. 117, p.11
Reference: American Costume Jewelry- Art & Industry, Brunialti & Brunialti, Schiffer, 2008, p. 169
Dimensions: 7/8" diameter .
Measures: 2-3/4" x 2-1/4"