“N in a square” bottle mark:
Obear-Nestor Glass Company, East St. Louis, Illinois (1894-1978)
The “N in a square” trademark was used from approximately 1915 to the glass plant closing in 1978. This is, by far, the most common mark seen on glass containers made by Obear-Nestor Glass Company. The mark is usually located on the bottom of the bottle. It is often seen on amber (“beer bottle brown”) bottles of many types, including chemical, oil, medicine, general household, food, and beverage bottles. For instance, some amber Orange Crush soda bottles are seen with the “N in a square” mark on the bottom. Often, (at least on some soda bottles) the mark is accompanied by a date code, usually two numbers located to the immediate right of the “N”, which would stand for the last 2 digits of the year the bottle was made.
There are at least two other slight variations of this mark, specifically, N inside a circle, and just a “plain N“, listed on Page Four of the Glass Bottle Marks pages.
Note: Special thanks to SandyR1951 (Ancestry.com member) who states that the Obear-Nestor Glass Co. plant shut down permanently on December 31, 1978. This info was posted on that site, in response to a query I had posted there back in 2004. After nearly 9 years, I am correcting my information here!!
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