Can you point out what you think is an error ? I see a lot of scratches, bad cleaning and environmental damage.
I actually just got this in change at the supermarket, I'm not really into cleaning coins myself I like the natural patina. But it looks as if there is lettering or something but there is definitely something up with it. But as always I appreciate an opinion or insight of another person.
After 30+ years of life in the fast lane it has lost any collectible value. Keep looking & post your finds