Reserve Bank of New Zealand, a set of obverse and reverse progressive proofs for the $10 (7), ND (1981), comprising litho obverse 1st working, brown, litho obverse 2nd working, lilac and olive, litho obverse 3rd working, lilac and blue; 4th working lilac and multicoloured, also litho reverse 2nd working, blue and yellow-green, litho 3rd working, blue and pink and a 4th working multicoloured, all printed on paper with watermark of Captain James Cook (Pick 172-progressive proofs, TB B119ap for type), uncirculated, extremely rare and only seven sets believed extant (6 notes)
