Dating mason jars 18 year old dating a 15 year old law

John Mason was a tinsmith in New York and perfected a machine that would cut threads into the lids, creating a jar with a reusable, screw-on lid.A number of factors go into the final value of a canning jar.Thousands of canning jars were embossed with the Mason patent date, November 30, 1858.But even before we talk about that, what are mason jars really?Mason jars date back to the 1800s when John Landis Mason thought of an innovative way to seal jars.Collecting canning jars got its start in the 1960s with a renewed interest in canning and other domestic arts.