Dating atlas fruit jars
I’m the current contact for information about historical Ball jars on the Ball Corporation web site. Instead, I mean how do you tell how old your Ball jar is?They were first made in Buffalo in 1884 and for several years after. They identify the position that the mold in which the jar was made held on the glassmaking machine.But, you say, how can the date 1884 be correct, since you have a jar embossed with a patent date of 1858. Most machines would have from eight to ten molds, all making the same type of jar.
In 1882, Henry William Putnam of Bennington, Vermont, invented a new kind of fruit jar by adopting a bottle stopper patent by Charles de Quillfeldt.
That was the date when John Mason received his patent for the threaded screw-type closure, and it appears on many different brands of jars. Check the logos below against the logo on your jar. Ignore the Mold Number How about that big number on the bottom of many jars? The quality control people used the number on the bottom of the jar to identify which mold was producing bad jars.