Duraglas Glass Jar Value Guide

The Duraglas glass jar is a quintessential piece of mid-century Americana, produced by the Owens-Illinois Glass Company between 1940 and 1960. These jars are highly collectible due to their specialized 'Duraglas' strengthening process and their functional design featuring a wire bail handle and threaded metal lid.

What affects the value of Duraglas Glass Jar?

• Condition of the metal components, as rust or corrosion on the wire bail and threaded lid can decrease the $25 market value.
• Clarity of the glass, with cloudiness or 'sick glass' from mineral deposits reducing appeal compared to crystal-clear examples.
• Presence of original manufacturing marks and date codes that pinpoint the jar to the 1940-1960 production era.
• Structural integrity, specifically the absence of chips around the threaded rim which is vital for the jar's historical canning function.

How to Identify Duraglas Glass Jar?

• Look for the 'Duraglas' script logo embossed directly on the glass body or base.
• Check the bottom for the Owens-Illinois 'I' inside a diamond or circle mark, often accompanied by a plant code and year digit.
• Verify the presence of the original wire bail handle and the specific threaded metal lid used for 1940s-60s food preservation.
• Examine the glass for the characteristic clarity and thickness associated with the Owens-Illinois industrial manufacturing process.

History of Duraglas Glass Jar

Duraglas was a trademark of Owens-Illinois Glass Company, a major American glass manufacturer. They produced a wide variety of glass containers, including canning jars, bottles, and industrial glass. The Duraglas line was known for its durability and was widely used for food preservation and household storage throughout the mid-20th century.