100 Pounds Royal Bank of Scotland

Bradbury Wilkinson handled the bulk of RBS's higher denomination printing through this period, and their intaglio work on the £100 notes of the late 1960s is characteristically precise — the firm's reputation rested on security printing contracts across dozens of countries, and quality control was stringent. The 1969 date places this note in the final years before decimalization, which took effect in February 1971, after which existing pound-series notes were gradually withdrawn.

At £100, this denomination saw almost no ordinary retail circulation — it functioned primarily in interbank settlement and large commercial transactions. Genuinely circulated examples are unusual for that reason alone.