These antique blue Ball Mason jars is a unique addition to any collection. With a quart volume, it is perfect for storing fruits, vegetables, or other items. The jar features mold marks and bubbles, adding to its rustic charm. Made in the United States, this piece is a must-have for any collector of modern (1900-Now) bottles and insulators. The blue color and jar bottle type make it a standout piece in any display. Various mold numbers, but no 13s. Photo is a representation of all the jars available. There are a few older ones, nothing older than 1923-33.