The classic, we've been making this wallet chain for more than 20 years. A stout 16" hand carved and asymmetrical curb link chain. All that's changed over the years have been the connector links and clasps. The last update brought the Big Eye clip 16's, the top clip has an arm, bottom clip doesn't ( use that one on the wallet end that you'll probably not be removing often if ever.
Sterling silver. Made by hand in our foundry in Los Angeles.