This set has that deco look. It has been found in green and pink. The tray has been found with a stippling on the bottom and without. The shakers have been seen with a frosted effect.
In Lorraine Kovar's book, "Westmoreland Glass, Volime 3, 1888-1940" there is a cream and sugar and ice tub in a very similar pattern. Ms Kovar has stated that she does not believe a salt and pepper were made in this pattern. She thinks these shakers are possibly Hazel Atlas or Anchor Hocking.