1918, $5 Deep Green & Black, top margin plate block of 6 with plate numbers "8178" & "8179" and arrow guideline, o.g., never hinged, rich deep colors, choice overall centering, wide top margin with strong intact perforations, Extremely Fine, a magnificent plate block of the 1918 $5 Franklin issue. Scott No. 524  $6,000. $0 (Image)