1 Pound Guernsey Bank - Bishop de Jersey and Co.

Bishop de Jersey & Co. operated the Guernsey Bank from around 1797, making it one of the earliest private banking ventures on the island. This 1809 pound note predates any formal banking regulation on Guernsey by decades — the island's financial sector remained largely outside the reach of British mainland legislation well into the nineteenth century, a consequence of Guernsey's distinct constitutional position as a Crown dependency rather than a part of the United Kingdom.

Private bank failures across Britain and Ireland in the 1820s and 1830s wiped out countless issuers of this type, and surviving examples from small Channel Island private banks are genuinely rare. Bishop de Jersey & Co. itself did not survive the century.