This lot includes six Quart Blue Ball Perfect Mason Canning Jars base numbered #5,#6,#7,#8,#9 & #10. These vintage jars are perfect for collectors and can be used for a variety of purposes including storage, decoration, and even canning. The beautiful blue color and classic design make them a great addition to any collection or kitchen. Each jar has a capacity of one quart and features the iconic Ball Perfect Mason logo on the front. The jars are made of high-quality glass and are in excellent condition made in the time frame of 1923-1933. They have been well-maintained over the years and are sure to last for many more. These jars are a great find for anyone looking to add to their collection or to use for their canning needs as the top rings as well as the shoulder rings are in excellent condition. Check out my other listings for more great items. For any additional images or questions please contact me. I combine shipping on multiple purchases.