I have been looking around at 19th century proofs. I keep coming across some grading designation of PL.
My questions are:
1. How can you tell if it is PL or PR if you are looking at a raw coin...wouldn't a PR that has not been taken care of give the impression of PL?
2. Based upon these examples, which one would peg as the proof and why?
This coin is graded MS64PL:


This is a PR64, I am not seeing how this is proof especially looking at the details and fields. The MS above looks more proof than this coin below:


