1 Pound National Bank

The National Bank Limited was an Australian private trading bank, not a central authority — this note predates the Commonwealth Bank's monopoly on note issue, which took full effect in 1924 under the Australian Notes Act amendments. The National Bank continued redeeming outstanding notes after that date, but new issue effectively ceased, which compresses the active circulation window for this series considerably.

The bank itself was absorbed into the Commonwealth Bank of Australia in 1931 during the wave of depression-era consolidations that reshaped Australian banking entirely.