Alle Welt: Cook Islands: rare uncut sheet of three PROOF prints of the series of 1987 (P. 3 to 6) uniface, intaglio printed on blue specimen paper, Pick: 3,4,5,6 (one proof print with the main picture shown on all notes of this series) Fresh crisp original condition with only slight handling in paper, not folded. First time seen on the banknote collectors market. Condition: XF+.