1. Wooden slit gong Date: 1951 and 1979 Description: Wooden slit gong with design carved on top; origin Democratic Republic of the Congo, Bira people. Initials "KO KO" burned into one side.
2. Rectangular wooden gong Date: 1951 and 1979 Description: Rectangular gong; two pieces of wood fastened together with a glue-like substance; opening on one side, wood bows out on front and back, and top and bottom edges are jagged; origin Democratic Republic of the Congo, Mbo people.