<http://schema.org/description>
"One hemispheric seal engraved with winged griffon. Yellow chalcedony.\r\n\r\nSasanian Orient\r\n\r\nDiameter: 2,6 cm (1 in.)"^^<http://www.w3.org/2001/XMLSchema#string>
<https://en.expertissim.com/our-works-of-art-and-antiques/decorative-arts/sculpture/orientalist>