Keep in mind the doubled dies on these tend to be closer to the centers of the designs. Not on outside devices. On the single squeeze dies, unless they start the hubbing process, then back out and start over, they're the only doubled dies you will see on the outer devices.
Example:
http://doubleddie.com/186364.html
1999-S 25¢ Pr PA WDDO-001 "Best Of" Variety
Description: A Class IV spread to the ESE shows on LIBERTY, USA, QUARTER DOLLAR, and slightly on IGWT and the S mint mark. The hub was also tilted resulting in the strongest spread being on the left side of the obverse and the spread decreasing as you move from left to right across the obverse.
This is the only obverse doubled die that affects more of the die face. All the other doubled dies for the obverses are only on the ear lobes for the whole series.
Example:
http://doubleddie.com/186364.html
1999-S 25¢ Pr PA WDDO-001 "Best Of" Variety
Description: A Class IV spread to the ESE shows on LIBERTY, USA, QUARTER DOLLAR, and slightly on IGWT and the S mint mark. The hub was also tilted resulting in the strongest spread being on the left side of the obverse and the spread decreasing as you move from left to right across the obverse.
This is the only obverse doubled die that affects more of the die face. All the other doubled dies for the obverses are only on the ear lobes for the whole series.





















