New Zealand 1907–1926 - Bank of New Zealand £20 Blue Serial-Prefix Audit Specimen (Pick S194s)
The £20 denomination occupied the highest settlement tier within the BNZ system and was deliberately executed in a blue–slate color family reserved for upper-level clearing and interbank instruments. This chromatic choice followed Bradbury Wilkinson’s established BNZ color logic, progressing from £1 Green through £5 Red and £10 Brown to the subdued blue tones of the £20, visually signaling professional handling and high-value usage. Read more →