Watch List notes:

Reserve Bank of New Zealand, a set of obverse and reverse progressive proofs for the $20 (6), ND (1981), comprising litho obverses (3), green, lilac and blue respectively, litho reverses pink and orange, lilac and green, last pink and multicoloured respectively, all printed on paper with watermark of Captain James Cook
(Pick 173-progressive proofs, TB B120 for type), uncirculated, extremely rare and only four sets believed extant (6 notes)