Signed Frosted and Foiled Cabochon Enamel and Rhinestone Clip On Earrings

Signed Frosted and Foiled Cabochon Enamel and Rhinestone Clip On Earrings featuring a frosted foiled burnt orange cabochon at the centre framed by a black enamel square border and clear round rhinestones set against the chamfered corners. These incredible statement clip on earrings glow from within and they measure 2.8cm by 2.8cm and the central burnt orange cabochon measures 2cm diameter and together they weigh 32.2g. They are both signed, but the signature is very worn - it is five letters long (or four letters with a copyright sign), and I think they begin with either a K, an M or an H. The second letter is A, possible MARIE? Any ideas on the signature would be welcome, although it was tricky to get a good photograph of the cartouche. A gorgeous pair of 1980's vintage clip on earrings, possibly 1970's.