1 Pound

Perkins, Bacon & Petch had by the late 1820s refined Jacob Perkins's siderographic transfer process, which allowed intricate engraved designs to be reproduced with exceptional fidelity from a master die — a technology specifically developed to defeat the era's endemic forgery problem. Guernsey's adoption of this printer placed the island ahead of many larger issuers still relying on conventional copperplate methods.

The States of Guernsey operated outside the Bank of England's authority, and these notes circulated in a jurisdiction that maintained its own distinct currency arrangements well into the twentieth century. The 1827–1828 window is narrow; the series was short-lived.