At first glance, it looks like a Roman Denarius, but let's back up a bit. The best way for you to get an accurate ID is to repost your pictures - cropped and clear. Cropping will enlarge them a bit and remove all of the unnecessary background; improving the focus will help viewers to see the important details. Next, posting the weight in grams, and the diameter in millimeters, will go a long way toward helping to narrow down the hundreds of possible choices. There are a few very good ancient coin identifiers on this forum, (not me) and they will be happy to help you, if you will help them.
Oh, and Welcome to the forum!