Venezuela, La Guaira 1868-69, ½c black on greyish yellow, complete sheet of 25, brownish o.g., margins large to in at a few places at left including corner nick at top left, paper somewhat discolored due to acidic gumming, F.-V.F., an extreemly rare complete sheet, Ringstrom valuation cat. $6,250 for singles with notation "pairs, strips and blocks are rarities, only a few known RRR". Estimate  $2,000 - 3,000. $0 (Image)