Cornish Clam Shell Pendant On 18 Inch Chain is a Cornish coastal jewellery piece by The Cornish Jewellery Company. It is made from highly polished lead-free pewter, handcrafted and cast using recycled tin and copper in Botallack, west Cornwall. Key details: Approx 25mm wide x 20mm high, 18 inch / 45cm silver plated belcher chain, gift box supplied and product code CJ-P45.