1 Ouguiya magnetic

Mauritania's 2009 coinage reform replaced the original post-independence brass and cupro-nickel series with nickel-plated steel across most denominations, driven largely by the rising cost of base metal alloys on global commodity markets during the mid-2000s. The ouguiya itself is a currency with no colonial precedent — it was introduced in 1973 when Mauritania withdrew from the West African CFA franc zone, with the name derived from the Berber unit of account.

KM#10 in the standard catalog sequence reflects the reformed type. The magnetic property is a direct consequence of the steel core.