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Does anyone know what is this Ring in front of the house for? I live in Bayern and a lot of old house have this kind of ring beside their door :
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Heirloom emerald ring. This was my aunt's ring who lived in Germany, given to my mother when my aunt died early 1980s. Real emerald according to my mother (now deceased). 18ct gold
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A woman wears a prototype of the Mota Smart Ring at the consumer electronic fair IFA in Berlin, Germany, Friday, Sept. 5, 2014. The smart ring is designed to notify users about
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