This blank is shown in "Colored Glassware of the Depression Era 2," by Hazel Marie Weatherman, on page 319. It has no pattern on the base.
The creamer is 2 1/2" high at the side rim and 3 1/2" across. The sugar is slightly taller at 2 5/8" to the rim and 3 5/8" across.
The pieces did have silver on them; you can see traces in several spots on the handles and the rim. However, most of the shiny areas you see in the photo are glare, not silver.
The base is flat and consists of two rings, exactly the same size. As the shape comes up to the top, there is a slight flare to the rim which is more visible on the sugar.
