Carnival Glass was initially called Iridescent Ware when it was introduced in late 1907. The name carnival glass was not commonly used until collectors in the 1950s began to refer to it as such. This innovative glassware typically featured a vivid metallic sheen of changing hues on pressed glass articles made in highly-patterned moulds. The secret behind the Iridescent Ware was a special spray of metallic salts on the glass while it was very hot.
Made as both functional and ornamental objects and found in a wide array of colors, carnival glass is an inexpensive pressed glass, often called dope glass by glass factory workers because of the process of applying the iridescent coloring, which is known as doping. Its production can be traced back to as early as 1907, with many, many different pieces in over 150 distinct patterns. It did not, however, command the expected prices, and was subsequently discounted heavily.
The glass is produced in various translucent colors. Primarily amongst these are amethyst, marigold, cobalt, green, and red. Sometimes it is also made in opaque white which is called milk glass. A semi-transparent or translucent pale-green hue was also available before the widespread knowledge of radiation hazards. this glass was called Vaseline or uranium glass. Both of these contain traces of uranium salts which gives the glass a faint green glow when exposed to UV light.
Among the greatest producers of this type of glass was Millersburg glass Company in Ohio. The first glass products by that company were crystal however the Millersburg plant decided to follow success for iridescent glassware. So in the beginning of 1910 the Millersburg Company started its line of Radium glasswares
Carnival glass is highly collectible item. Prices vary widely, with some of the pieces worth very little, while other, rarer items command thousands of dollars. It has become an antique glass collectible and there is a very active market for it.
It is very hard to identify carnival glass. Most of the time, the makers didn’t mark their work, others only marked them part of the time. To figure out who made the glass one has to match, patterns, colors, sheen, edges, thickness and some other factors from old trade catalogs, examples of prior work or a reference material. Many manufacturers made close copies of rivals popular works to. So even for an experienced expert this is a hard task.
Carnival glass is made as both functional and ornamental objects. This innovative glassware made in highly patterned moulds has a vivid metallic sheen of changing hues on pressed glass articles. This glass is available in many translucent colors like primarily amethyst, marigold, cobalt, green and red. It is also made in opaque white, which is also referred to as milk glass. Prices vary widely depending on their quality and availability. It has become an antique glass collectible. To figure out who made the glass one has to match, patterns, colors, sheen, edges, thickness etc. One of the biggest producers is millersburg glass company in Ohio.