There was a time when food was valued so much that it was preserved for the winter when the harvest was completed. Think about the times when people were not working 24/7...when they had time to can food or make jams or sauces from scratch. Perhaps the concept is romantic, or women did it out of need like during WW II.
They are selling that case of 6 for $12.99. The Ball Corporation owned and operated many plants, but in 1993, Ball spun off the jar business to Alltrista Corporation (which is now Jarden Corp.). Since 1993 the Alltrista Corporation has been manufacturing the Ball glass canning jars. They also make Kerr, Bernardin (Canadian) and Golden Harvest canning jars.
The canning jar dates to 1858 when an inventor and tinsmith from New York City, John L. Mason, invented the mason jar. He invented a machine that could cut threads into lids, which made it practical to manufacture a jar with a reusable, screw-on, lid. This was the difference between his design and predecessors, the sealing mechanism: a glass container with a thread molded into its top and a zinc lid with a rubber ring. The rubber created the seal, and the threaded lid maintained it. The jar included his patent: "Mason’s Patent November 30th. 1858."
Another manufacturer was Hazel-Atlas Glass Company, in business from the late 1800s until 1964.
Sometimes you find an odd jar...here is a Mom's Mason Jar...this was produced in the 1970s by the Home Products Company in Columbus, Ohio.
"When I walk into my kitchen today, I am not alone. Whether we know it or not, none of us is. We bring fathers and mothers and kitchen tables, and every meal we have ever eaten. Food is never just food."