Signed MJ Red and Black Enamel Ladybug Brooch/Pendant

Charming ladybug brooch with red and black enamel. Features silver tone accents. MJ Enterprises, a costume jewelry brand that was active during the 1970s through the 1990s.  About the maker: While there are several companies that use an "MJ" mark, the style of this specific piece of vintage costume jewelry, which often features enamel and rhinestones, is consistently associated with an "MJ" mark (usually two capital letters inside a rectangular frame). The item: This item is often a dual pin and pendant, featuring red and black enamel with rhinestone eyes, set in a silver-tone metal base.