vintage sterling silver mint or nut dishes, set of 6 individual place setting party cups

Set of six vintage sterling silver nut cups, probably 1920s or 30s.

These are plain, unweighted sterling, each about 2 3/4" in diameter. All are engraved with an M.

They're very tarnished, but they don't look as though they've had much if any use - they have very little scratching.