Onitsha, 1889, Photographer possibly by G. F. Packer credited with other photos from the Niger and Önïcha (Onitsha) Trade-by-Barter "Trade-by-Barter" was a common practice in all the markets in Ala Igbo before the introduction of the cash economy.  People exchanged goods like farm produce, livestock, crafts, and services without using money. Goods were exchanged based on…