A quantity of 50 like-new metal caps for Jumbo Peanut Butter jars. These will fit the regular 1 lb jars, 2 Lb jars, and several other Jumbo jars which take the standard size cap. No paperboard liners. A jar collecting customer of North American Glass reports that he found a stash of these sealed in containers in an old building in Pennsylvania. This is all we know. They are beautiful lids in flawless pristine condition, and fit the jars perfectly.