These look very native American, to my knowledge they are not, they are not sterling silver nor turquoise, I'm not sure what all materials the native Americans used way back then but these are celluloid turquoise with a hint of white swirl half moon and a star, very atomic celestial retro looking. The glue used has yellowed some but doesn't distract from these in my opinion at all, it's hardly noticeable in person, much worse in photos! Vintage earrings can all be made into post pierced earrings I leave that to the buyer, I can do it for you if you'd like however. measures approximately- .75" box 20 I sell in my closet and have tons of other brands similar to list such as weiss, Stanley Hagler, Alice caviness, Demario, Navajo, miriam haskell, hattie Carnegie, juliana, coro, vior,Donald stannard, lisner, renoir, Eisenberg, Christian dior,Givenchy, ciner, carolee's, hobe, Ben amun, Tiffany and co, Vendome, Alexis bittar, Judith jack, kjl, vargas, Sherman, Nolan Miller, Elsa peretti sharra Pagano, Jill Fagin, Jay feinberg, kenneth Jay lane, Germany, Japan, Hong Kong, Simon ju, Thelma deutsch, Erwin pearl, monet, Napier, Cynthia Daniel, Elizabeth Taylor, Anne klein, les Bernard, Heidi daus, silpada, Sorrell, and more, so keep a look out I list daily