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I have a lot of old, vintage canning jars. I love the history they carry as well as their charm and character. While it is okay to use them for storage or even as a refrigerator container, you should never process old jars in a canner. Plus, the old fashioned sealing method is not reliable. But vintage jars are great on your pantry shelf to hold grain, etc. If you have a Ball jar, you can date most of them just by looking at the logo. Every few years, the Ball Manufacturing Co changed the logo and if you compare yours to a reliable chart, you know how old it is.

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Ball mason jars were produced for many years with the year printed on them, but this is no indication of the age of jar itself. Rather, is the year that John Mason was granted a patent for his mason jar design, and the Ball company used this patent year on many jars. Ignore the patent date. This was another patent date that was printed on many mason jars, and that has no bearing on the year of production.

In fact, Ball used this patent date on their jars well into the s, so this year cannot be used to accurately date a Ball jar. Ignore the mold number on the jar.

Kerr did not actually manufacture glass during the earliest period from to , but instead had jars made for them (with the Kerr name embossing) by other glass companies, Illinois-Pacific Glass Company of San Francisco, and Hazel-Atlas Glass Company based in Washington, PA, later Wheeling WV. Kerr self-sealing jars and the Kerr Economy were created in Alexander H. Kerr also founded the Hermetic Fruit Jar Company in the same year. San Francisco man Julius Landsberger patented metal lids fastened onto a composition gasket. Kerr used the patents to create a . May 13,   Check the jar from top to bottom. The Kerr name will be embossed on the glass. There are some general guidelines to approximate the date of a vintage Kerr jar between and The finish on a fruit jar can tell you roughly about the date it was made. If the finish on the base is smooth on the lip of the jar, it usually means the jar was.

Many Ball mason jars have a number printed on the bottom of the jar, but this is a mold number that does not indicate the year of production.

Rather, the mold number tells you where the jar was positioned on the glass-making machine that was used to produce it. It may be worth something, but that will be determined by the size, color, age, and top.

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Check for jars with descriptions or pictures that match yours and see what they've sold for in the past by searching "Completed Listings". Not Helpful 3 Helpful I have a Mason Jar with the word Perfect mispelled as Perfeot. Is this a fake or reproduction?

This is not a reproduction.

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You will find some jars with errors like that on them. Not Helpful 8 Helpful Not Helpful 13 Helpful I have a half gallon, ball blue, ideal wire side, with the dropped A. Any value? The dropped a without an underline is quite uncommon. If it has an underline, it is common.

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Not Helpful 1 Helpful Those gripper ridges were first applied to jars in by Brockway, then Ball. They help you grip the jar.

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Not Helpful 10 Helpful I have a half gallon aqua mason jar with Mason's N Patent Nov 30th on it. Is this a rare jar? I'm afraid your jar is not rare.

How to Date Kerr Jars

There are many of them for sale online, and are not hard to find. Not Helpful 5 Helpful Most of the square jars were made starting in the 's. More modern made jars are a rounded square shape. Not Helpful 2 Helpful Some people collect these because they believe they are scarce. It is a myth that they were destroyed by superstitious moonshiners or housewives. This story was started by retailers trying to inflate the prices.

Not Helpful 6 Helpful I have an old ball canning jar that says "Sanitary Sure Seal" on the front below the word Ball. How old is it? If the jar is blue, then it's like from the early s. More specifically, the jar is probably from between and The price of the jar will depend on the size and the condition. On 13, the bottom of the Ball Perfect Mason jar the 1 is backwards.

Is this common? Errors in the molds are common in old jars because of how the molds were created. Not Helpful 1 Helpful 5. Unanswered Questions.

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How do I tell the age of my half gallon mason jar? Have blue jar, Atlas, strong shoulder on front of jar? Include your email address to get a message when this question is answered.

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More References 4. About This Article.

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Co-Authored By:. Co-authors: ated: March 29, Categories: Featured Articles Kitchen Collectibles. Article Summary X To date an old Ball mason jar, look at the logo on the jar.

Dating Old Canning Jars. I have a lot of old, vintage canning jars. I love the history they carry as well as their charm and character. While it is okay to use them for storage or even as a refrigerator container, you should never process old jars in a canner. The old glass can't take the temperature change and might shatter - which would. Aug 25,   Released in , this item once boasted a rubber lid. (When heated, it would melt to create a seal.) Missing the topper cuts the price in half. VALUE: $ The lid of this s jar (made in Canada) has a metal band with a glass top-the result of the government deem- ing it unsanitary for metal to directly touch canned foods. VALUE: $Author: Joshua Lyon.

Nederlands: Oude Ball Mason potten dateren. Thanks to all authors for creating a page that has been rea times. Reader Success Stories. JK Joe Kr Jun 30, The Ball ID article was outstanding! AM Andrea Morin Jul 17, I purchased bottles at an estate sale. It enabled me to date bottles back to the If there is a mould seam it means the jar was made after Check for the style of the jar.

Kerr Glass Mfg. Co. Bill Lockhart, Beau Schriever, Bill Lindsey, and Carol Serr Alexander H. Kerr apparently became involved with jars to supply the family packing business, Wadhams & Kerr Brothers. Initially, he became a jobber, acting as the go-between for his brothers and the glass industry. Kerr leased a glass factory in and began his own. Dating antique bottles requires knowledge of the evolution of bottle technology and the ability to research manufacturers and bottling companies. Although glass bottles have been made for a few thousand years, it was not until the 19th century that bottle use became common, coinciding with the industrial revolution. By the midth century. Jul 19,   Ball mason jars are a type of home canning jar made by the Ball Corporation. The company started making mason jars back in , and many people today still use these for canning, or collect the jars as a hobby. There are many ways to date old Ball mason jars, and one of the easiest is to look at the logo. Along with the logo, you can sometimes 91%.

If it has small scars on the bottom and has a modern design, it was probably made afterwhen machines were more efficient. Look for additional information to indicate modern Kerr jars. Today's modern Kerr jars are all machine-made. Typically embossed on the jar is the date of manufacture, plant location, job number, and other information.

Moira Sullivan is a San Francisco-based freelance writer with a Ph. Written by: Moira Sullivan Written on: May 13, Warnings The Kerr lids have gone through several evolutions since and should never be reused for canning.

The earliest bottles were hand-blown by a glassblower with a blowpipe and lack seams.

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Is the bottle highly symmetrical, but lacking mold seams? This type of bottle was probably dip-molded and dates after circa Is the base indented with an irregular to round pontil scar? This, and no mold seams, is another indication of a hand-blown bottle. A pontil rod held the nearly molten bottle during the final stages of manufacture.

Kerr jars dating

The scar was left when the pontil was detached from the bottle. Look for side mold seams. If the seams disappear in the neck, the bottle was probably "blown-in-mold" and dates circa to early s.

Is a pontil mark present along with disappearing side mold seams? This bottle probably dates circa to Do the mold seams disappear in the neck, but the bottle lacks a pontil mark?

Ball Mason Jars vs Kerr Mason Jars - Whats the difference? - Useful Knowledge

Blown-in-mold bottles without pontil marks date circa s to s. Do the mold seams go all the way from the base to the lip?

This is a machine-made bottle and dates after Look for a "suction" scar on the base. This will be shallower, wider and more perfectly circular than a pontil mark.

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