Vintage Designer Sterling Silver and Agate Necklace By PJH. It features an amazing and large striped agate gemstone which looks totally stunning, the stripy pattern has amazing colours. It is fully hallmarked for sterling silver with the makers mark "PJH", the London assay mark, the lion passant and the date letter "E" for 1979. It is a large pendant, it measures 4.2 cm by 3.1 cm including the bale. It comes on a 17.0 inch strong solid sterling silver chain which is hallmarked with "STERLING" for sterling silver. It weighs 21.6 grams approx. Excellent condition.