1 Pound

Dumbell's Banking Company was one of the Isle of Man's most prominent private banks through the nineteenth century — and one of its most catastrophic failures. The bank collapsed in February 1900 in circumstances that devastated the island's economy, wiping out the savings of thousands of depositors. Notes from the 1875 series predate that disaster by a quarter century, issued at the height of the bank's apparent prosperity.

Perkins, Bacon printed the plates using their signature steel-engraving process, the same security technique they applied to postage stamps across the British Empire. The Pick number 141 designation reflects extreme rarity — surviving examples from this issue are genuinely uncommon, most lost to the redemption chaos that followed the 1900 collapse.