Your coin appears to just be corroded on both sides; it's probably not any kind of error.
When an outer clad layer is missing from a clad coin the weight will be significantly lower than normal. I don't know what the difference would be for a dime but I have a quarter with a missing clad layer and its weight was down by over 1 gram from the standard value of 5.67 grams (roughly a 20% weight loss). If the same proportion applies I expect a similar error dime would be down about 20% from its standard weight of 2.27 grams, so maybe about 1.8 grams.
If the weight is normal or close to normal it can't be a missing clad layer error IMO.
When an outer clad layer is missing from a clad coin the weight will be significantly lower than normal. I don't know what the difference would be for a dime but I have a quarter with a missing clad layer and its weight was down by over 1 gram from the standard value of 5.67 grams (roughly a 20% weight loss). If the same proportion applies I expect a similar error dime would be down about 20% from its standard weight of 2.27 grams, so maybe about 1.8 grams.
If the weight is normal or close to normal it can't be a missing clad layer error IMO.























