These interesting vintage turquoise earrings are signed/dated: McKeown 98. It had maybe the most positive "sterling silver" test I've seen in a while! These have what I suspect are their original backs, too. Working with a fellow Posher who noticed it, the green stones have some wear marks which indicate that those stones are not green turquoise. I've adjusted the priced accordingly. I currently have another McKeown sterling earring pair listed, if you would like to bundle the two pairs.