Plateau (researcher's name) was produced 1926-1937 in Flamingo, Crystal and Marigold.
Other colors:
-Finger bowl,jug and rose bowl were also made in Moongleam
-Jug and rose bowl were made in Hawthorne
-Sherbet in cobalt with crystal foot
This was basically a blown stem and soda line so items are not marked.
The jug and rose bowl were added later to the line and have a ground and polished pontils
T Clarence Heisey designer.
No reproductions.
The rose bowl shown is in Moongleam, and is 6" in diameter.