If it’s an upper case “L” in addition to a reduced circumstance “c”, it’s for Louis C Marks who built jewelry within the 40s. On the other hand, this interpretation is not as likely, as “JP” by itself doesn’t generally signify a particular metal typical. Trend-manufacturing.com is usually a participant from https://donovanxkvit.kylieblog.com/37602444/helping-the-others-realize-the-advantages-of-jp88