How do you date a Duraglas jar?
If the logo “Duraglas” appears embossed in script on the bottle’s heel, this generally means that the bottle was produced between 1940 and the late-1950s.
How can you tell how old a vintage bottle is?
Bottle Lips You can determine the approximate age of an old bottle just based on its lip. After the glassblower removed the bottle from the mold, he affixed a hot glass lip to the bottle’s neck. Next, he crafted the applied lip into the correct shape.
Where is Owens Illinois headquarters?
Perrysburg, OH
O-I Glass/Headquarters
When did bottles start having screw tops?
Screw tops were invented in the early 1800s, but not standardized so they would not come into their own until the era of machine-made bottles in the 1900s. Crown tops were a Victorian innovation, circa 1890s. They also did not come into widespread use until the era of machine-made bottles in the 1900s.
How can you tell how old glass is?
Most pieces of old glass do not have any glass markings. Check for excessive wear and scratches on the bottom. If the piece is gilded, it may show signs of wear. Many times a glass makers mark was a type of branding called an acid badge.
Where did the trademark Duraglas glass come from?
DURAGLAS ~ trademark on glass bottles “Duraglas” Trademark used by Owens- Illinois Glass Company Duraglas (in a cursive script with only the first letter actually capitalized) was registered by Owens-Illinois Glass Company, based in Toledo, Ohio at that time, on September 23, 1941. The official registration number was #0390467.
Why was Owens-Illinois Glass given the name Duraglas?
Owens-Illinois had been working for years on improving their container glass formula, increasing it’s strength and durability in order to produce bottles with less weight, thus increasing profitability. This new, stronger glass formula was given the trade name “DURAGLAS”.
Where was the Duraglas 7 Up bottle made?
G-94 was the code number for the bottle style. Emerald Green 7-UP bottle marked “Duraglas” on the base. This bottle was made in 1950 at Alton, Illinois That article covers Owens-Illinois in depth, with discussion on the Duraglas trademark.
What is the date on a Duraglas soda bottle?
Duraglas marking on base of emerald green 7-up soda bottle (shown below) with 1950 date code. The “7” indicates the Alton, Illinois factory. G-94 was the code number for the bottle style. Emerald Green 7-UP bottle marked “Duraglas” on the base. This bottle was made in 1950 at Alton, Illinois