Glass canning jar, Kerr 'Self Sealing' wide mouth mason jar

Kerr Glass Manufacturing Corporation began producing mason jars in the early 1900s, with the 'Self Sealing' line becoming one of their most popular products. These jars were designed for home canning and food preservation, featuring a two-piece lid system that created an airtight seal. The wide mouth design made filling and cleaning easier compared to regular mouth jars. Kerr jars are highly collectible among vintage kitchenware enthusiasts, antique bottle collectors, and those interested in American domestic history. These jars appeal to collectors for their nostalgic value, historical significance in American food preservation, and their continued practical use in modern canning, crafts, and rustic home décor. The embossed lettering and classic design make them popular decorative items in farmhouse and vintage-style interiors.