Lot of six assorted old and antique vintage clear glass mason fruit jars. These mason jars are all the one quart size. There are two Kerr Self-Sealing Mason jars. One of them it a wide mouth with a metal and glass lid. It has a 1915 patent date. The other Kerr jar has a standard metal lid. There are also a Atlas Strong Shoulder jar and an Easy-Pak Mason. The Easy-Pak Mason seems somewhat rare (at least around here) as we've never seen one before.