Interesting, hollow metal, Brutalist-style, silver-plated earrings shaped like two riven stones with small piercings to either side of the rifts.

Each earring is reverse stamped to the back (see pics), but I’m not familiar with the marks.

In good vintage condition with clips working well.

Approximate measurements: each earring is 2.6cm high x 2cm wide x 0.5cm thick (exclusive of clips).