The image of the Gamtel logo was used from 1990 to 1994 for different emissions that at first glance seem all the same. However, the first card used has a different design from all the others, distinguished by the more coarse traits, and the writing “GAMTEL” much larger than the subsequent emissions. The card was produced by Schlumberger and is 125 units, with SC4 chip in Afnor position.
