The sunburst looks like a GVIII-3 or 5. It has the nice light yellow-amber that you see a lot of the Pitkin style flasks in, but then again, those were also made in Coventry, Glastenbury, and probably Willington also. Willington started in 1815, and these 3 glass houses weren`t that far apart, and in 1828 Gilbert, Turner & Co. bought both the Willington and Coventry glass houses, so those two I`m sure shared molds and probably glass blowers too. It`s too bad that more isn`t known about what Willington produced, they were in business for 57 years and probably made bottles that we`ll never realize were made there. Someday when and if the CT Glass Museum gets on it`s feet, I`ll be donating these pieces to them so hopefully they and the fact that they are from Willington will never be lost.
Fresh out of the ground today, you can just make out out in the picture that this is green, what you cant see is its loaded with bubbles and is a vibrant olive forest green that passes light easily.