Some young men specialize in the purchase and exchange of mutilated bank notes as a means of living.
Bank notes wear out over time or happen to be depreciated before the normal life span and are constantly replaced by the central bank. This activity has offered an opportunity for business to some young men in Douala who go around collecting depreciated bank notes, of course in exchange for a price, for onwards transmission to the bank authorities for replacement. They go around the quarters with a board on which samples of depreciated bank notes are affixed, asking anyone with a torn or deprecated bank note to come and exchange it, of course for lesser than the phase value of the bank note. They deal with bank notes of all currencies; CFA, Euro, dollars especially.
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