<http://schema.org/description>
"Lot of four yellow-gold 18 K (750 milli\u00E8mes) watch winding keys; one rectangular with wavy guilloche pattern and small circles, other ornated with facet-cut blood jasper, a third set with one carnelian cabochon, last set with two amethysts, two citrines and one small green gemstone\r\n\r\nRestoration Period\r\n\r\nHeights: 5,6 - 3 cm (2-1/5 - 1 in.).\r\n\r\nOverall weight: 16,04 gr. (1/2 oz.)."^^<http://www.w3.org/2001/XMLSchema#string>
<https://en.expertissim.com/our-works-of-art-and-antiques/watches/ancient-watches/yellow-gold>