I completely agree with what you're saying here and never claimed otherwise. All proof-like coins are first strikes, but it does not go to say all...
The disagreement here is fundamentally cultural. You view PL as something the coin has, rather than something the coin is. In the US, these coins...
Definitely go with italics over quotes.
Removing the question of subjectivity while introducing false negatives is of dubious value. Other countries don't impose such a test. They...
Separate names with a comma.