Dating kerr mason jars


07-Oct-2020 21:21

The Kerr Self Sealing Mason jar was developed by the Hermetic Fruit Jar Company, founded by Alexander Kerr in 1903.

The Self Sealing jar was one of the first products that the company released.

Many of these jars are not only still around but thousands of them, like the ones you see here, are still in use.Kerr patented the first canning lids that had a permanently attached gasket, the type still used today.