Tanzania's shift to nickel clad steel for this denomination in 1987 reflected persistent foreign exchange pressure — the country had been locked in a prolonged economic crisis through the 1980s, exacerbated by the costly Uganda war of 1978–79 and the collapse of the East African Community in 1977, which dissolved shared monetary infrastructure overnight. Cheaper substrate metals became a practical necessity, not a policy preference.
Tanzania's shift to nickel clad steel for this denomination in 1987 reflected persistent foreign exchange pressure — the country had been locked in a prolonged economic crisis through the 1980s, exacerbated by the costly Uganda war of 1978–79 and the collapse of the East African Community in 1977, which dissolved shared monetary infrastructure overnight. Cheaper substrate metals became a practical necessity, not a policy preference.