Guinea-Bissau, 1991

Guinea-Bissau, one of the smallest states of continental Africa, has not issued many cards. The first were produced by Landis & Gyr, a system that was used from 1991 to 2002, when the phones with optical band cards  were replaced by those with chip technology. In that period four types of cards were issued: the first two, in 1991, were 120 impulsos (circulation 25,000) and 240 impulsos (circulation 5,000), and both had code 106E. The two cards were then reprinted in 2004, with the same design but code 408A.

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