1 Pound Northern Bank

The Currency Commission was established under the Currency Act of 1927, and these notes — issued through the consolidated banking panel rather than by any single institution — carried the name of the member bank on the face while remaining legal tender as a unified Irish currency. Northern Bank's participation placed it in an unusual position: a Belfast-headquartered institution issuing notes through a Dublin-administered commission, a arrangement that reflected the commercial realities of cross-border banking before partition had fully hardened.

The Brennan/Stewart signature pairing on the January 1931 date is the scarcer of the two combinations in this series.