Vintage McKee footed custard sherbet glasses, buyers choice, yellow jadeite, milk glass, seville, country kitchen by Wantiquities
These jadeite opaque glass custard sherbet dishes were made by McKee glass company in the 1930s.
They may have originally been juice glasses. They are just over 4 inches tall, 3+ inches across the top.
They were made in several different colors of opaque glass. This color was known as "seville".
I do not know about the color variation – I have two in the lighter color with the ivory swirl, three in the slightly darker color, same swirl. See photos.