Color combinations make for fashionable vases
Two-toned glass where one color shades into the other was fashionable in the late 19th to early 20th century. It started with amberina, which shades from red to amber and was made by reheating part of a piece of amber glass. Many companies made it, but usually under different names, since amberina was patented for the New England Glass Company. Other color combinations were made by adding a thin layer of flashed glass to the interior of a piece of transparent colored glass. Bluerina, a blue-shaded glass whose name is influenced by amberina, was made this way. Collectors use the name ...
