Cire-perdue (lost-wax brass casting, Kulango)
The lost-wax casting technique used by Kulango specialist smiths to produce small protective and divinatory brass figures, distinct from the goldweight tradition of their Akan neighbours.
The cire-perdue process as practised by Kulango metal-workers involves modelling the desired figure in beeswax, encasing the model in a clay investment mixed with organic material to improve porosity, firing the assembly to burn out the wax and harden the mould, then casting a molten copper-alloy (brass or bronze) into the resulting cavity. Once cooled, the clay investment is broken away to reveal a unique casting; because the wax model is destroyed in the process, no two pieces are identical. The small scale of Kulango figures -- typically 3 to 6 centimetres -- demands considerable technical refinement, and the expressive, sometimes asymmetric forms achieved within this scale are a reliable marker of competent workshop production versus later imitations, which tend toward smoother, less modelled surfaces.
The Kulango lost-wax tradition belongs to the broad Gur and Voltaic brass-working sphere that extends across Burkina Faso, northern Ghana, and northeastern Côte d'Ivoire, encompassing the Gan, Lobi-adjacent smiths, and others. It is genealogically and technically distinct from the Akan adinkra-goldweight system despite the geographic proximity of the two traditions in the Bondoukou region. This proximity has been the primary source of misattribution in auction and dealer records, where small Kulango cast figures have been catalogued as goldweights. The alloy compositions, casting conventions, and -- critically -- the functional purpose of the objects differ substantially between the two traditions.