Ron Guth:
More than one 1943 Quarter Dollar obverse shows doubling, but one variety shows stronger doubling than any other and is worth a significant premium over the others. That variety is FS-103 (old FS-016.7) and to qualify it must match the images shown above. Doubling can be seen on the entire motto IN GOD WE TRUST (final punching shifted up and left). Doubling is also evident on most of LIBERTY (final punching to the right). If your coin does not match this image it is most likely the less valuable, but still desirable, FS-101 or FS-102.