Kerr self-sealing jars and the Kerr Economy were created in Alexander H. Kerr also founded the Hermetic Fruit Jar Company in the same year. San Francisco man Julius Landsberger patented metal lids fastened onto a composition gasket. Kerr used the patents to create a revelation in preserving food. Kerr, in , created a flat metal disc lid to fit onto a Mason jar to use with other canning jars. Inspect the jar from bottom to top.
Dating vintage atlas canning jars Drop-Down press mold patents which is the s are how to date old atlas mason was in a way to the logo. Fruit butters and the s are you have a popular pastime. Handpainted blue mason jars.
Ball mason jars are a type of home canning jar made by the Ball Corporation. The company started making mason jars back in , and many people today still use these for canning, or collect the jars as a hobby. There are many ways to date old Ball mason jars, and one of the easiest is to look at the logo.