First, from what I see, I would not discount "JRP" as the letters. Second, while the crimps in the metal make it all look soft like Sterling, this is not conclusive. Third, if it is in fact platework, the topmarked initials could be for commercial useage such as a "H"otel. Fourth, again if plate, the "P" in makers mark could be for "Products"--many concerns using this as part of the name like Stanley Home Products, etc. Finally, why did you feel this was the correct section to place this inquiry? Do you know something more about the object which is not revealed in your entry?