90 Pounds White, 1759 issue

Bank of England "white notes" of this period were hand-written on a partially engraved form, with the cashier's signature, payee name, and date entered in ink — making each note effectively a unique manuscript document. The £90 denomination is among the most unusual in the entire pre-printed series; round sums like £50 or £100 dominate surviving examples, and odd amounts like £90 typically reflect specific commercial transactions rather than standard banking practice, often tied to the settlement of a precise debt or the discounting of a bill of exchange.

The 1759 issue falls within the Seven Years' War, when the Bank was under sustained pressure to finance government borrowing. Forgery was already a serious institutional concern by this decade, though the more aggressive wave of counterfeiting that prompted design changes came later.