This is a picture of a decent condition 1902
Barber dime. There is a buble that seems to have been in the metal when the coin was minted which caused a raised portion on the surface that was then worn down as shown by the wear pattern on the sides of the bubble. The hollow cavity measures 2mm wide by appx. 1mm high and <1 mm deep and does not go the full depth of the coin nor does it mar the face, only the obverse. Any thoughts would be appreciated.
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