Vintage Ball Porcelain Lined Zinc Caps For Regular Mouth Mason Jars Set of 28~NOS in Box~
I believe, based on the price of the Ball Blue Book listed on the packaging, these boxes date to the 1960s.
New Old Stock in original boxes. 12, 12 and 4 lids in the boxes. Metal of lids are in various states of brightness. Boxes have missing flaps and show wear. Photo shows 27 lids but I found an extra one after the photo was taken and there are 28.