Estate Job Lot of Vintage Brooches and Ear-rings! some SIGNED - RARE FINDS READ

This is an estate / job lot containing a lovely selection of vintage costume brooches and earrings. Some are clearly signed / stamped with the designer (please read on). Total of 5 brooches/pins, and 4 pairs of vintage ear-rings, details as follows: 1) Gold-tone metal 'leaf' design brooch - signed 'Corocraft' (Coro). Non-magnetic metal. Lovely weight. Circa 1950s/ MCM. 2) Two-tone (gold-tone and silver-tone) metal 'Infinity' Knot brooch - signed M.JENT (M.J. Enterprises) Circa 1970s/1980s. Magnetic. 3) Frosted green and violet Lucite brooch - 'Sweet Violets' by Avon. Circa 1983. 4) Gold-tone metal filigree opalesque glass brooch. Unsigned. Delicate, dainty light piece with a C-clasp fastening. May be very old (possibly Edwardian, early 20th century?). Looks like someone has repaired the loose pin before. Non-magnetic metal. 5) Amber rhinestone and gold-tone brooch. Unsigned. Safety clasp fastening. Missing some tiny rhinestones around center large stone. Unknown vintage. 6) Brushed Gold-tone 'knot' style clip-on ear-rings. Signed 'Sarah Cov' (Sarah Coventry). From 1967. 7) Clear 'ice' style rhinestone glass crystal and silver-tone clip on ear-rings. Baguette stones and dangle/drop style. Beautiful, vintage ear-rings. Weiss? Unsigned. Circa 1950s 8) Iridescent blue glass crystal drop ear-rings with leverback fastenings. Very pretty in the light! . Unsigned. Circa 1960s/MCM. 9) Pink 'opal' leaf-style rhinestone yellow-tone clip-on ear-rings. Julianna style. Gorgeous.