The indicating of “JP 88” can vary with regards to the jeweler, state of origin, and specific marking program applied. Nation hallmarks: Some nations around the world have their own individual hallmarking techniques. Figuring out the state hallmark can provide clues in regards to the jeweler’s origin and possible sizing benchmarks. https://kylerfqkwh.thelateblog.com/37487213/the-definitive-guide-to-jp88