This vintage Kerr Glass CO. Economy Mason Jar with metal lid and clamp is a must-have for collectors of modern (1900-now) jars. Made in the United States in 1906, this clear pint-sized jar is perfect for storing various items. The metal lid and clamp add to the jar's vintage charm and ensure that the contents remain secure. The jar is embossed with the Kerr brand logo, making it a valuable addition to any collection.