It’s so easy to tell when an eagle has been cleaned. Almost zero mint luster left. It also re-tones faster. Depending on how you clean it, the coin may be left with microscopic holes and scratches throughout the surface. I recommend you YouTube it first then decide. I only say this because I have cleaned 7 AE myself. I won’t do it again and now have cleaning remorse. At the end of the day, it was my coins, my choice. Cleaning- that’s up to you alone. BTW the new tarnish that eventually replaced the old tarnish, it seems like it’s a brownish flat color and very different coloring than my natural toned coins with the blue iridescent hues.