$20 1990 FRN Un-Printed Fold = Really Cool Mistake = PMG Gem Unc 65EPQ

The lower right corner of the note folded forward onto itself prior to the first (back printing) then later unfolded prior to receiving the face printings. As such, the corner that's folded over completely missed the back printing offers a bright white flap as a nice contrast to the rest of the bold inks on this Gem error.

Series Year	1990
Country	United States
Denomination	$20
Grade	65 EPQ
Signature	Villalpando Brady
Grading Agency	PMG
Category	Small Size $20 Federal Reserve Notes
Serial No	B31836700E
Status	Active
Seal	Green (D.C.)