20 Pounds British Linen Company

The British Linen Company — chartered in 1746 ostensibly to promote the linen trade — had pivoted entirely to banking long before this note was issued, though it retained the original charter name until its absorption into the Bank of Scotland in 1969. By 1822 it was operating as a fully functioning commercial bank across Scotland, competing directly with the Royal Bank and the Bank of Scotland itself.

Perkins, Bacon & Petch had only recently established their London operation, bringing American steel-engraving techniques to British note production. Jacob Perkins's intaglio methods were specifically marketed as counterfeit-resistant, and Scottish banks were among the earliest adopters.