Thank you all for the leads, it would take me a while to follow through on them and see if I find a match.
I will let you know if I do.
Someone passed a small collection to me and I'm trying to identify the ones that are not yet identified.
Sadly, I don't know where they were found. I'm only asking about coins that I had trouble identifying.
I have Phocas, Maurice Tiberius, Constans II, etc. coins that were much easier to identify, so I guess they are not that rare. Perhaps the first coin is rare, I just thought someone must have seen one before and would know exactly what it is.
How do I know if a coin is silver and not bronze without a special machine. I noticed gold and silver coins usually have larger margins, so I believe none of the ones I have is silver or gold.
I should note that I played with the contrast and brightness of the pictures, so it was easier to see.
The coins are a darker black and I don't want to risk cleaning or applying any treatment to them.
The pictures are not the best quality, I haven't mastered the art yet, the details are clearer than in the pictures when you hold the coins in your hand.
I have some Pontus coins and the second coin looked like it could be Pontus due the material, but obviously I was mistaken and now I have leads that will help me find it. If it's a Brockage, I guess it will make it harder, since I don't know what's the original image and what's the later one.
The condition of these is great, so it's easier to know what to look for. I have some coins that it would be a much harder task to identify, because of the condition.
Here's a few that I can still make:

Looks like a palm tree, but I haven't managed to find something exactly like it.

Looks like a head on one side and a man in a cape on the other.

I've seen this head before, but on the other side there a figure, perhaps and angel in a dress. Sorry the picture is not very good, it should be much clearer.
Thank you for all your assistance.