I'm not a collector of ancient coins, but I came across this one and it looks intereting so I bought it. I believe it is from Rhodes.
Crowded at the reverse bottom is PO (first two letters in Rhodes in Greek). At the top is a magistrate name APIsigmaTAKOY. It is a good first coin. I hope you will find others as nice in the near future.
That's a great coin, I bet you will be hooked soon. Rhodes produced some beautiful coins! Didrachm c. 250-230 BCE Tetradrachm c. 205-190 BCE
There's a caduceus to the left of the rose. Like this https://www.acsearch.info/search.html?id=303385
Very nice portrait on your coin and a very good first ancient buy. The name is ΑΡΙΣΤΑ - something, not sure if the next letter is a K or an P. So it is something like Aristarchos or Aristakos or something similar. It is the name of the magistrate in control of Rhodes when this coin was minted. Here is my Rhodian coin: