$50 1981-A FRN, Fr. 2121-K Offset Printing Error PMG Ch Abt Unc 58

A well-preserved small head fifty that certainly presents like a problem-free Unc example. The back to face offset is quite bold and nearly complete with the lower right corner remaining unaffected by the mirrored impression. Comment of 'minor foreign substance' of which we can't begin to guess where or what this grader may have seen prior to encapsulation.

Series Year	1981A
Country	United States
Denomination	$50
Grade	58
Signature	Ortega Regan
Grading Agency	PMG
Category	Small Size $50 Federal Reserve Notes
Serial No	K00049085A
Status	Active
Seal	Green