5c Light Blue, De La Rue, Plate Proof on Wove Paper (6P5).
Block of four and vertical pair with large gutter between,
creased in gutter, still Very Fine, each signed in pencil by Robson Lowe, the gutter pair can only exist from the 400-subject proof sheet found at the De La Rue office in 1976, as De La Rue cut the finished sheets into panes of 100 before sending them to the Confederacy, with copy of 1976 P.F. certificate, C.S.A. Catalogue value $1,800.00, Scott Retail as singles and gutter pair
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