North of Scotland Bank Limited, reproduction proof £100, 15 May 19- (1901-07), no serial number or signatures, black SPECIMEN and CANCELLED stamps, uncirculated
PMS NS 20s for type £300-£400

This item is not engraved and is printed on card rather than the usual thin paper, and the ‘underprint’ is in fact stamped over the top of the other print, and as such it is likely to be a more recent copy of an original specimen. How recent is unclear, and the production value is still extremely high.