The much loved iridized coating that creates carnival glass began appearing in the early 1900’s. Carnival glass is pressed with the use of a mold. Iron molds are used to create the beautiful patterns while the glass is in molten form. Once cooled, metallic salts are sprayed onto the glass that gives it the wonderful multi-color coating.
There are other types of glass that is iridized, some date back for thousands of years. Many of these old pieces were merely iridized from chemicals found in the soil in which they were buried for centuries. But, the manufacturing process of carnival glass didn’t start until Fenton began producing the pieces in 1907. Continue reading “Collecting Carnival Glass”