Official Seal - Registry, 1872, green, printed on both sides, back inverted, Top Sheet Margin Pane of 15, full o.g. with some adherence affecting only three stamps, well centered throughout, fresh with strong bold color, reverse with light yet discernible second impression, two stamps with small pin rust stain and a few minor perf separations, otherwise Very Fine, the Only Recorded Full Pane of the 1872 Registry Seal Issue Printed on Both Sides Variety and one of the four known top panes recorded, a remarkable and unique exhibition item, ex Cunliffe. Scott No. OXF1e  $12,000 for singles. $0 (Image)