VNTG Estate Costume Rhinestone Pronged Bezel Snowflackes Silver

VTNTG estate earrings with screw on clips lock Silver tone unknown metal , very clear bright sparkly rhinestones . Very cute snowflakes cluster style . Size 1" in diameter approximately . VERY RARE !!!! I believe these earrings were design by Eisenberg Ice . There is no marks just small letter c inside circle on one of screw According to my research - some Eisenberg pieces created between 1952 and 1970 have no trademark stamp at all. So I believe this is one of it .