Peacocks, Westmoreland
When this chop plate was sold in 2013 it was listed as Westmoreland and designated as Peacocks. I've never seen the pattern otherwise and could not find it in Lorraine Kovar's book on Westmoreland Glass from 1950 to 1984. Nonetheless, it's in purple and brought $50. The back has a butterfly pattern.

In 2017, a 9-inch bowl in purple sold for $40.

Updated 1/25/2018