Algot Enevoldsen, the father of PANDORA, is understood because of the initials ALE, and fifty represents the amount of silver used in the jewellery. HK is often a trademark that stands for Harriet Kelsall. They style and supply jewellery all around the UK and to other places too.  Can “JP” https://archerarhxl.blogdon.net/the-definitive-guide-to-jp88-53065081