Seller: happywinos2rwj (182) 100%, Location: Las Vegas, Nevada, Ships to: US, Item: 282262975431 I don't know much about the history of these, but I would guess they are from the 1920's. They were given to me many years ago and I've never put them to use. I've never seen another pair of these anywhere. They are made of a light metal, are 4" diameter at the longest points and the hardware is 3/8" in width and about 2.75" in length. They also have a lovely shaped cap.