This Vintage Dugan Peacock at the Fountain Tumbler in Cobalt Blue has lots of iridescence on it… mainly Purple. You will see that the Iridescence on the outside distorts the Blue glass color when looking from the inside. In the base photo, you will see that it is Blue Glass. This is a copycat pattern with Northwood being the 1st. The N appears in 1911 ads. In 1914 Northwood registered their pattern. So an assumption on my part is that was done to try to prevent Dugan from adding addition items in this very successful pattern. Dugan only made Water Sets in this pattern. Approximate dimensions: 4 inches high, 2 3/4 inches wide, 2 3/8 inches base.
Vintage Dugan Peacock at the Fountain Tumbler in Cobalt Blue.