1 Guinea = 1 Pound 1 Shilling Sterling

The guinea denomination was an awkward but commercially necessary concession. Scotland's merchant class conducted much of their trade with England using guinea-based pricing — livestock, professional fees, and luxury goods were all quoted in guineas — so a bank that issued only round-pound notes faced a practical disadvantage. The Royal Bank began issuing guinea notes in the 1730s, making this a well-established series by 1777 rather than an experiment.

Scottish private bank notes of this period were legally enforceable obligations, not merely conveniences. The optional clause allowing deferred payment, briefly used by Scottish banks in the 1760s, had been prohibited by the Bank Notes (Scotland) Act 1765 — so by 1777 this note carried an unconditional promise to pay on demand.