This is a set of 6 coffee or tea cups or mugs made in Japan in the 1960s that are Cera-Stone, a ceramic overlay on stone. They are a gorgeous robin’s egg blue on the outside with white on the inside and handle.

They were originally part of a luncheon set with lunch plates designed to hold the cup as well. I only have the mugs, which are awesome on their own! They are 3” high and 3 3/8” around at the top. They hold 1 cup.

They are in mint condition, with no chips, cracks or crazing. They may have never been used.

Marked “By Jonas Roberts Cera-Stone Japan” on the bottom.

This item is sold from a vintage boutique in Jenkintown, Pa.