If it’s an higher case “L” in addition to a decrease case “c”, it’s for Louis C Marks who built jewelry inside the 40s. SETA is an organization which offers style jewellery. Their jewelry commonly features a CZ plating about silver. CN means that the jewelry is made in China, https://daftarslotonlineterpercay24545.mdkblog.com/42930544/indicators-on-jp88-you-should-know