You won't get any more detail out of this coin with peroxide. Looks like there's not a lot of crust on it. Peroxide will work with crusty coppers but be careful because if a coin is too far gone with corrosion peroxide will smoke it completely. Not always the best option but a decent one if a coin isn't too corroded. With that being said your coin almost looks like a King George II farthing that someone tapped the rim of for some reason. Not 100% sure of that ID though. Just a guess.Hard to tell what I found works great without damaging it is to take a glass fill it with about a 1/2 cup hydrogen peroxide microwave it for 30 seconds put coin in and watch the dirt fizzle away mkes it easier to see what it is safely!!!!!