This set looks like a nautloids from the jurassic time period. They are highly polished and set in sterling silver. The pendant nautloid is 1 & 1/8 inches long by 13/16 inch wide and is on a 16 inch sterling silver box chain, the earring nautloids are 13/16 inch by 10/16 inch and are hung on wires. This set is hand crafted by Dave H.