5 Yen in Gold

The Bank of Taiwan was established in 1899 specifically to serve Japan's newly acquired colonial possession, and its early note issues functioned as a parallel currency system — nominally redeemable in gold but operating under conditions that made actual redemption largely theoretical for most holders in Taiwan. This note predates the suspension of the gold standard in the territory, which makes the "in Gold" promise on the face a legally meaningful one at the time of issue, not mere decorative language.

The Cabinet Printing Bureau, known as Naikaku Insatsukyoku, handled security printing for the Japanese imperial government across multiple colonial currencies during this period. Wear patterns on surviving examples tend to concentrate along horizontal fold lines, consistent with long counter circulation in tropical humidity.