1000 Shillings With segmented foil

The segmented foil strip — an optically variable device that shifts color under different lighting angles — was still a relatively new commercial security feature in the late 1990s, and its inclusion here reflects Kenya's response to a serious counterfeiting problem that had plagued the earlier 1000-shilling issues. Micah Cheserem, who served as Central Bank Governor from 1993 to 2001, presided over a broader modernization of Kenya's currency infrastructure during a period of significant political and economic pressure, including IMF-suspended aid and public sector wage disputes that drove demand for high-denomination notes.

Pick 40 runs across five consecutive signature combinations, all bearing Cheserem's name — an unusually long tenure reflected in a single note type.