10 Pounds Northern Bank

Northern Bank Limited occupied an unusual position in Irish banking history — a Belfast-headquartered commercial bank issuing notes that circulated in Northern Ireland under the currency provisions that persisted after partition. Perkins, Bacon & Co. brought considerable security printing experience to the series; the London firm had been producing postage stamps and banknotes since the 1820s and was responsible for some of the earliest perforated stamps issued by Britain.

The nearly four-decade span of this issue, 1930–1968, almost certainly masks several distinct printings with differing signatures and dates rather than a continuous run.