This is only coin certified IN ANY NGC GRADE-! (4/2018)
1851/1851 FS-301 $2.50 Liberty.
NGC Attribution: FS-301
Cross Reference: Breen: B-6210
Diagnostics: The entire date was repunched south of the first impression.
In later die states only the repunching of the second 1 is clearly visible.
Close-up image courtesy of NGC.