Iris - Fenton
The Iris pieces have the pattern only on the inside and are found in two shapes; a ruffled compote and a goblet. The goblet is often referred to as a buttermilk goblet. They are about 6 1/2 inches tall. Both were made from the same mold.

Colors shown in the two photos above are marigold, amethyst and green. Goblets seem to only come in these three colors. Ruffled compotes are also found in the same colors, however, blue compotes are found occasionally and white compotes are known.