2000 D dime.. ?

[Russell Dwight]

Doubling? Cud?

[physics-fan3.14]

Appears to be a very small die break. A cud is a die break at the rim, so this is not a cud. 

Small die chips like this are quite common, and not worth a premium. 

[Six Mile Rick]

Russell,

 I have a 2000-D mint error if you want it. Found it in a mint set. Guess this one lost track and ended up in a gear somewhere.

 I'd guess MS65FT and I am not interested in submitting it. You can have it if you want it.

Rick

[glennm]

Looks to be an early stage "Man bun"!  LOL!