Vintage Kerr Embossed Self Sealing Glass Quart Mason Fruit Food Canning Jar #1

This jar has small writing for Kerr SEAL SEALING and MASON.  This is a one of a kind the SELF SEALING has a mistake in the "LING" in sealing. The L is faint, the I is missing, the N looks like a backslash, and the G looks like a C.

Alexander H. Kerr founded the Hermetic Fruit Jar Company in 1903 and among the first commercial; products were the Economy and Self Sealing jars.  They also incorporated aspects from two 1903 patents held by another inventor, Julius Landsberger: a metal lid with a permanently attached gasket. This made the lids easy to use and inexpensive.

Mr. Kerr later (1915) invented a smaller, flat metal disk with the same permanent composition gasket. The lid sealed on the top of a mason jar; a threaded metal ring held the lid down during the hot water processing. This allowed re-use of old canning jars together with inexpensive and easy to use disposable lids. The jar we know today was born! This two-part lid system transformed home canning safety and is still in use today.