Its called the Mrs Moore dress and it retails for $119 and comes in 4 colors.
The green one is still my favorite but if I were to buy another one I would probably get the pink one. The pictures don't do them justice. In person they really do look vintage. The buttons are really cute and overall its just a well made dress. Even though its a bit expensive, I really do think I will get a lot of use out of it. Its one of those easy dresses you could wear almost anywhere.