Kissi penny
The Kissi penny, also seen transcribed as kissy or kisi penny or known as guenze, koli, and kilindi, was an iron currency made in Sierra Leone that circulated widely in the immediate vicinity of its production among Gbandi (Bandi), Gola, Kissi, Kpelle, Loma, Mandinka and Mende and other people of Liberia, Sierra Leone, and Guinea-Conakry. == Origin == West Africans from the region of modern-day Liberia and Sierra Leone have used iron as a trading good and standard of value for a long time.