Vintage Silver Tone Perfume Shell compact unused

Vintage and rare seashell clamshell shaped compact containing creme solid fragrance which is fully intact and has a nice fragrance. Measures 1.75" x 1.5" x 1/4". May be Max Factor, Corday or another cosmetic company - no visible markings. Would compliment a collection nicely. I've researched this pretty compact online and cannot find anything similar. If anyone has additional information regarding this piece, would greatly appreciate more details. Thanks for looking, Jo