Vintage Antique Ball Ideal Half Pint Clear Ball Lock Glass Mason Jar. I love old jars. Don't see many 1/2 Pint ball lock jars by Ball. These are OLD and ORIGINAL Pat. Date July 14 1908. Neat and unique. Love to store all sorts of fun things in old jars. Use in any room of your house. Store buttons, clothes pins, dried orange slices, beans for pantry display, bathroom items like cotton balls, gosh just so many things. Half Pint size ball lock, all original, no chips. Just a great jar! Size is 4" tall x. 3" diameter. One jar has a #1 on the bottom, the other a #2. Only 1 of each for a total of 2 in stock. Will be carefully packaged for shipment.