We attended an estate auction in 2009 where we purchased some bracelets that Ernie Lewis from Bethany, Mo made during WWII as he worked in the Boeing Aircraft plant in Wichita, Kansas. He used scrap metal and molded the bracelet metal and riveted a set in each one. They fit a wrist that is 2 1/4 inches. Neat old items and not some reproduction. Postage will be $2.00 by first class mail, listing three today and can combine shipping. Missouri residents add sales tax. I do not know the type of metal, except it was whatever was used at the plant.