[en] The cross section for the reaction K^-n→antiKsup(*-)(892)Δ⁰(1232) at 8,25 GeV/c measured in the CERN 2m deuterium bubble chamber is found to be 9,6+-1μb. Comparing it to the cross-section of K⁺p→K⁺⁰Δ⁺⁺ at 8,25 GeV/c, and more generally comparing the energy dependence of the two reactions, it is suggested that this data contradicts the hypothesis of weak exchange degeneracy and rather behaves following absorbed regge trajectory exchange as advocated by Kane and Seidl, although the observed K⁺ and K^- ratio requires something more tha the π, rho and A₂ trajectories exchange