The P#96 1000 Yen ran for over two decades, which for a high-denomination note in active circulation is a long run — partly a function of Japan's economic stability through that period, partly because the National Printing Bureau produced sheets of unusually consistent quality that resisted the wear patterns that would normally prompt an earlier redesign. The series was eventually retired in 1984 when the current generation of notes introduced improved counterfeit deterrence beyond the single watermark security architecture used here.
The P#96 1000 Yen ran for over two decades, which for a high-denomination note in active circulation is a long run — partly a function of Japan's economic stability through that period, partly because the National Printing Bureau produced sheets of unusually consistent quality that resisted the wear patterns that would normally prompt an earlier redesign. The series was eventually retired in 1984 when the current generation of notes introduced improved counterfeit deterrence beyond the single watermark security architecture used here.