1000 Yuan Central Bank, with holographic strip

The holographic strip was added to the NT$1000 note in 2004 as part of a broader anti-counterfeiting upgrade driven by increasingly sophisticated forgeries circulating in the early 2000s — a problem serious enough that the Central Bank publicly acknowledged a spike in reported fakes before the redesign was authorized. The Central Engraving and Printing Plant, operating continuously since the KMT government relocated it from the mainland in 1949, has produced virtually all ROC currency in the decades since, giving Taiwan an unusually self-contained note production infrastructure for a territory of its size.

Pick #1997 places this within a long-running series rather than a distinct issue — the 2004 upgrade was incremental, not a reissue.