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<p>[QUOTE="Joan, post: 9570626, member: 5398"]Thank you Any Jewelry for clarifying the various issues with these earrings and glad to hear the stones are turquoise. I have one other pair that look like older NA screwback earrings. The screwbacks are a little smaller and are signed Sterling (there are no marks on the backs of the earrings).</p><p><br /></p><p>I noticed the stones on the older earrings look about as highly polished as the Maisels, so I did the water droplet test and the drop stayed as a bubble. Now I'm wondering if there's some type of coating on the surface, or maybe just oil from years of handling?, or are both sets of earrings possibly 1960s-70s after turquoise stabilizing started as Hollyblue said. [ATTACH=full]459837[/ATTACH]</p><p>P.S. I found a website that says the stabilization process first began in Arizona in the 1950s (palmstrading.com), but who says they're the final authority on the topic.[/QUOTE]</p><p><br /></p>
[QUOTE="Joan, post: 9570626, member: 5398"]Thank you Any Jewelry for clarifying the various issues with these earrings and glad to hear the stones are turquoise. I have one other pair that look like older NA screwback earrings. The screwbacks are a little smaller and are signed Sterling (there are no marks on the backs of the earrings). I noticed the stones on the older earrings look about as highly polished as the Maisels, so I did the water droplet test and the drop stayed as a bubble. Now I'm wondering if there's some type of coating on the surface, or maybe just oil from years of handling?, or are both sets of earrings possibly 1960s-70s after turquoise stabilizing started as Hollyblue said. [ATTACH=full]459837[/ATTACH] P.S. I found a website that says the stabilization process first began in Arizona in the 1950s (palmstrading.com), but who says they're the final authority on the topic.[/QUOTE]
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