Strong extra thickness on IGWT, LIBERTY, QUARTER DOLLAR, UNITED STATES OF AMERICA, and the mintmark. Strong notching and separation on IGWT, QUARTER DOLLAR, and the mintmark. 
Cross-References: DDO-001, WDDO-001 
Die Markers: 
Obverse: Die chips to the left of the designers initials JF. Die gouge above the Q in QUARTER. 
Reverse: Die gouges between the branches below the KS in ROCKS. 
Submitted by: Bernie Esguerra