Dating glass jugs

dating glass jugs

How can you tell the date on a glass bottle?

Most modern glass bottles carry date codes, which are often on the heel of the bottle. These date codes are not always obvious, or easy to distinguish from mold numbers. It also depends on exactly which glass company produced the container, as all firms did not / do not use the same system of markings.

How to determine the age of antique glass bottles?

When determining the approximate age of antique bottles, the first thing to know is how the glass bottle was produced. From the mid-19th century through the early 20th century, most glass bottles took shape under a glassblower’s watchful eye. However, in the mid-20th century, automation took over the glass bottle industry.

When did they stop making glass bottles by hand?

By 1917, the Owens automatic bottle machine figured in production of half of the U.S.-made glass containers. The hand-blown bottle era ended during the mid-1920s when machinery took over all bottle production. Note that all machine-produced bottles have their mold seams go completely upward over the bottle’s lip.

How do you read a date code on a soda bottle?

Date codes are often seen, especially on soda bottles from the 1930s to date, and many of these codes are embossed on the base of the bottle, placed to the right of the glassmaker’s logo. This is true on the products of some manufacturers, but not all.

How do you determine the age of an old bottle?

Brand names, trademarks, and other identifying marks provide useful data in determining an old bottle’s age. When the mark’s owner is established and clearer dates can be matched to the bottle’s use, the mark can help to positively date the piece. A well-defined maker’s mark can help you establish an old bottle’s age.

How to date Coke bottles?

It is easy to date Coke bottles that are made by the Root Glass company. The word “ROOT” will be present on those bottles. The “ROOT” base mark can be seen in original Coke glass bottles. Root bottles carry model numbers. Also, Root Coke bottles will have heel numbers. “Co”, O will be in lower-case letters.

How can you tell the year on a whiskey bottle?

There are several clues to assist in identifying the year and distillery of whiskey bottles. Most bottle manufacturers molded the year into the glass at the bottom of the bottle in 2-digit format.

How can you tell if a bottle is real or fake?

If a bottle displays a pre-1850 date or very bold glass colors, it’s probably a reproduction. If you see a huge number of glass impurities or the glass itself is heavy with a distorted shape, it’s a reproduction. An antique bottle maker would have gone to considerable lengths to minimize these issues.

How do you read date codes on soda cans?

How to Read Date Codes on Soda Cans. Look at the second set of numbers on the top line. This is a three-digit number. This number lists the day of the year the product was manufactured. For examples, 115 means the sodas manufacturing date was the 115th day of the year. Read the last group of numbers at the end of the row.

What do the numbers on soda bottles mean?

Look at the second set of numbers on the top line. This is a three-digit number. This number lists the day of the year the product was manufactured. For examples, 115 means the soda’s manufacturing date was the 115th day of the year.

How do you read expiration dates on soft drinks?

Expiration dates, in the past, were often in a code, but now they are easier for consumers to read. Checking expiration dates reassures customers the products they are buying are fresh and safe for consumption. Look for a code stamped on the soft drink bottle or can.

How do I read a made/manufactured on date?

Read a closed code as a “made/manufactured on” date. On many beauty products and canned goods, you can locate a code that is made of either numbers and letters combined or just numbers. If the code isn’t accompanied by words like “use by,” “sell by,” or “best by,” that means it refers to the date the product was manufactured.

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