Dating owens illinois glass bottles
With this hub, I am going to focus on the methods used by the Owens-Illinois (O-I) Company, and show you how to date your glass finds using the symbols and numbers indicative of the O-I company.I am by no means an expert on the numbers, nor am I an expert on how to date glass using the numbers, but I have done a lot of research on the subject, and I am relaying the information I have acquired along my internet travels.However, the A to the right of the 7 tells me that this piece of glass has a high probability of either once being a Coca-Cola bottle or a Pepsi-Cola bottle.If that is the case, this piece of glass may be our exception to the rule and the 7 to the right of the symbol may not be a year code at all.However, without having more of the glass, I am unable to narrow that down to a specific year.If that was the end of it, this would be a pretty lame blog post, but as it stands I am a fairly curious person and couldn't help digging a little deeper.Our first example to the right (Exhibit D), fortunately for me, is extremely easy to determine the date of production.Since 2063 has yet to pass, and the company did not exist in 1863 nor did it use that symbol prior to the 1950's, the only possible year of production is 1963. I am unsure of whether or not this particular example follows the general trend of date code to the right of the symbol. If we assume that the 7 is indicative of a year, it could mean anything from 1957 to 2007.
The automatic bottle-making machine revolutionized the industry, and became the foundation of today’s glassmaking industry. forming the company it is now (with a few changes along the way).
What first led me down this path of discovery was a small piece of glass I found washed up on my local creek with the word “where the surface of the hot, just produced bottles, were sprayed on the body, shoulder, and neck (not base or the top of the finish) with a stannic chloride (Tin (IV) chloride) vapor that allowed the tin to bond to the outer surface providing scratch resistance and durability to the bottles." (Lindsey, B.) Though this process is still in use today, the word was embossed on bottles only between 1940 and the mid-1950s (Lindsey, B).
Therefore the piece of glass I found was manufactured using this process somewhere in that time frame.
In 1941, the United States of America formally entered World War II on both the Pacific and European fronts.
Resources became limited as many industries focused on manufacturing supplies to support the war effort.