coin collector definitely
Unless you can find someone who is a collector of such coins, $0.50
a coin collector
No
A coin collector is often called a "numismatist."Coin collectors are referred to as Numismatists, and the study of coins is also called Numismatics.
A coin collector? That is what a numismatist means is a collector of coins.
It's gonna be harder to find one in circulation but you can easily find one online or at a coin collector.
Numismatist is a coin collector.
Numismatis
I suggest taking the coin to a collector or dealer for grading or even a coin show in your area for a better idea of condition.
Bibliophila refers to a love of books, so a bibliophile is a book collector.
If you think you actually have the 20th known example of this coin you don't. Just take it to any coin dealer or collector for an assessment.