Krüger, Denmark: Porcelain Clip-On Earrings in Mustard Yellow
A pair of midcentury modern clip on earrings, made from porcelain clay and glazed with a glass frit in mustard yellow. The glass frit typically gives a crackle effect.
Marked 'Denmark' on the back, but I have seen other items with the same markings also marked 'Krüger'. Other than that I can't find out anything about the maker.
I think these date back to the 1950s or perhaps earlier still. They are in very good condition, but you can see that there is some tarnishing to the metal clips on the back. They do both still work well however.
20 x 15 mm in size and in a little box which may or may not be original.