What is Japanese government-issued Oceanian pound?

The pound was one of several issues of Japanese invasion money used during World War II. Consisting of only four denominations, the Oceanian pound was the shortest set issued. Only notes for £1, 10/–, 1/– and 1/2/– were issued. It is unknown why no notes for 3d, 1d or 1/2d were produced.

The currency was issued in the occupied territories of Guam, Gilbert Islands and Ocean Island , Caroline Islands, Marianas Islands, Solomon Islands, Palau, and the now defunct Territory of New Guinea. Although officially called "Oceania" the region was considered a financial and currency union under Japanese colonial dominion that included several political jurisdictions rather than a single polity.