Here are three of my favorites, the two on the left have so many waves of fine bubbles that it gives them a clambroth type of appearance, especially the clear one. The one on the right is one of the crudest bottles I have ever had.
Here are the different shades of cobalt and Prussian blue ones, they are more common than you`d think but you don`t see them often for sale because they are uncommon and attractive. The one on the right is Prussian blue, which is like a mixture of cobalt blue and grey.
The ambers that are like a Stoddard amber because of a bit of more brown to the color. I`m only Using Stoddard as a color example, I`n not suggesting that they were made there because they aren`t old enough.