The symmetry structure of non-abelian affine Toda model based on the coset
SL(3)/SL(2)โU(1) is studied. It is shown that the model possess
non-abelian Noether symmetry closing into a q-deformed SL(2)โU(1)
algebra. Specific two vertex soliton solutions are constructed.Comment: 17 pages, latex, misprints corrected, version to appear in J.Phys