If it’s an higher case “L” plus a lessen scenario “c”, it’s for Louis C Marks who created jewellery while in the 40s. However, this interpretation is not as likely, as “JP” by itself doesn’t normally signify a particular metal conventional. CN means that the jewellery is produced in China, https://israellpjwq.activoblog.com/42731976/the-single-best-strategy-to-use-for-jp88