in 1987, nickel-plated steel replaced cupro-nickel in the 50 senti and 1 shilingi, and cupro-nickel 5 and 10 shilingi coins were introduced, with the 5 shilingi decagonal in shape. in 1990, nickel-clad-steel 5, 10 and 20 shilingi were introduced, followed by brass-plated steel coins for 100 shilingi in 1993, 50 shilingi in 1996 and copper-nickel-zinc 200 shilingi in 1998.