Why are some old mason jars blue?
Feeling Blue Those blue mason jars were mass produced until 1937 using sand from around Lake Michigan. It was that sand that gave the glass its blue hue.
What is a Knox Mason jar?
Knox (K in Keystone) Mason. The Knox jars were made in the 1940s by the Knox Glass Bottle Co. in Knox, PA The pints and quarts are worth about $6. The half pints and half gallons are of greater value to collectors.
How can you tell when a ball Mason Jar was made?
Article SummaryX. To date an old Ball mason jar, look at the logo on the jar. If the logo is an insignia made up of the letters BBGMC, the jar was made between 1885 and 1886. If the logo is written using block letters, the jar was likely made between 1892 and 1896.
How much is a vintage green Mason Jar worth?
However, the vintage green jars or those with special wire carriers can sell in excess of $300. The logo is the best way to date the jars because the Ball logo changed throughout the years. Click here for a handy chart that gives dates for the different logos used. Note that the numbers on the bottom refer to mold numbers and not to model numbers.
How can you tell when a glass jar was made?
Not every jar has their manufacture date on the glass, but most have the patent date. However, this date has no relation to the year your jar was made. There will be a large number on the bottom of your jar. This is the mold number, and unfortunately also has no relation to the manufacture date.
How can you tell how old an Atlas Mason Jar is?
However, there are a number of ways to tell how old your Atlas Mason jar might be. Examine the jar to see if it has lines or mold seams from its construction. Most Atlas jars will have these seems. If the jar doesn’t have seams, it may be a very old example.
Article SummaryX. To date an old Ball mason jar, look at the logo on the jar. If the logo is an insignia made up of the letters BBGMC, the jar was made between 1885 and 1886. If the logo is written using block letters, the jar was likely made between 1892 and 1896.
However, there are a number of ways to tell how old your Atlas Mason jar might be. Examine the jar to see if it has lines or mold seams from its construction. Most Atlas jars will have these seems. If the jar doesn’t have seams, it may be a very old example.
However, the vintage green jars or those with special wire carriers can sell in excess of $300. The logo is the best way to date the jars because the Ball logo changed throughout the years. Click here for a handy chart that gives dates for the different logos used. Note that the numbers on the bottom refer to mold numbers and not to model numbers.
What do you call an upside down Mason Jar?
One of the most common error jars is a Ball jar with a misspelling of the word “Perfect,” and common variations include “perffct,” “peprect,” and “perefct.”. 6. Check for upside-down writing. Ball jars that have an upside-down logo are actually upside-down jars that were designed to function as coffee dispensers.
